395 lines
15 KiB
Prolog
395 lines
15 KiB
Prolog
%%% -*- Mode: Prolog; -*-
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% $Date: 2010-10-13 17:09:47 +0200 (Wed, 13 Oct 2010) $
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% $Revision: 4915 $
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%
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% This file is part of ProbLog
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% http://dtai.cs.kuleuven.be/problog
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%
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% ProbLog was developed at Katholieke Universiteit Leuven
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%
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% Copyright 2009
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% Angelika Kimmig, Vitor Santos Costa, Bernd Gutmann
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%
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% Main authors of this file:
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% Bernd Gutmann
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% Artistic License 2.0
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%
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% Copyright (c) 2000-2006, The Perl Foundation.
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%
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% OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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:- module(ad_converter,[compile_annotated_disjunction/5,
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compile_tunable_annotated_disjunction/5,
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proper_annotated_disjunction/1,
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proper_tunable_annotated_disjunction/1,
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term_expansion_intern_ad/3,
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op(1149, yfx, <-- ),
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op( 550, yfx, :: )
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]).
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% general yap modules
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:- use_module(library(lists),[reverse/2]).
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:- style_check(all).
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:- yap_flag(unknown,error).
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:- op( 550, yfx, :: ).
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% for annotated disjunctions
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:- op(1149, yfx, <-- ).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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term_expansion_intern_ad( (Head<--Body),Module,ad_intern((Head<--Body),ID)) :-
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proper_tunable_annotated_disjunction(Head),
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!,
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compile_tunable_annotated_disjunction(Head,Body,Facts,Bodies,ID),
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assert_all_ad_facts(Facts,Module),
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assert_all_ad_bodies(Bodies,Module).
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term_expansion_intern_ad( (Head<--Body),Module,ad_intern((Head<--Body),ID)) :-
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proper_annotated_disjunction(Head),
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!,
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compile_annotated_disjunction(Head,Body,Facts,Bodies,ID),
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assert_all_ad_facts(Facts,Module),
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assert_all_ad_bodies(Bodies,Module).
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term_expansion_intern_ad( (Head<--Body),_,_) :-
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format_to_chars('Error at compiling the annotated disjunction ~q<--Body.',[Head,Body],Error),
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print_message(error,Error),
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fail.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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assert_all_ad_facts([],_).
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assert_all_ad_facts([F|T],Module) :-
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once(problog:term_expansion_intern(F,Module,Atom)),
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assertz(problog:Atom),
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assert_all_ad_facts(T,Module).
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assert_all_ad_bodies([],_).
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assert_all_ad_bodies([B|T],Module) :-
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assertz(Module:B),
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assert_all_ad_bodies(T,Module).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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get_next_unique_id(ID) :-
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(
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bb_get(mvs_unique_id,ID)
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->
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true;
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ID=1
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),
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ID2 is ID+1,
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bb_put(mvs_unique_id,ID2).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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proper_annotated_disjunction(AD) :-
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proper_annotated_disjunction(AD,0.0,Sum),
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Sum=<1.
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proper_annotated_disjunction( P :: _, OldSum,NewSum) :-
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% evaluate P
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P2 is P,
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P2>=0,
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P2=<1,
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NewSum is OldSum+P.
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proper_annotated_disjunction((X;Y),OldSum,Sum) :-
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proper_annotated_disjunction(X,OldSum,NewSum),
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proper_annotated_disjunction(Y,NewSum,Sum).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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proper_tunable_annotated_disjunction( t(_) :: _).
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proper_tunable_annotated_disjunction((X;Y)) :-
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proper_tunable_annotated_disjunction(X),
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proper_tunable_annotated_disjunction(Y).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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compile_tunable_annotated_disjunction(Head,Body,Facts2,Bodies2,Extra_ID) :-
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get_next_unique_id(Extra_ID),
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convert_a_tunable(Head,Extra_ID,[],Facts),
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convert_b(Head,Body,_NewBody,Extra_ID,[],Bodies),
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reverse(Facts,Facts2),
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reverse(Bodies,Bodies2).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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compile_annotated_disjunction(Head,Body,Facts2,Bodies2,Extra_ID) :-
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get_next_unique_id(Extra_ID),
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convert_a(Head,0.0,_Acc,Extra_ID,[],Facts),
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convert_b(Head,Body,_NewBody,Extra_ID,[],Bodies),
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reverse(Facts,Facts2),
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reverse(Bodies,Bodies2).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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convert_a((X;Y),OldAcc,Acc,Extra_ID,OldFacts,Facts) :-
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convert_a(X,OldAcc,NewAcc,Extra_ID,OldFacts,NewFacts),
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convert_a(Y,NewAcc,Acc,Extra_ID,NewFacts,Facts).
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convert_a(P::Atom,OldAcc,NewAcc,Extra_ID,OldFacts,[P1::ProbFact|OldFacts]) :-
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Atom =.. [Functor|AllArguments],
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length(AllArguments,Arity),
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atomic_concat([mvs_fact_,Functor,'_',Arity,'_',Extra_ID],NewAtom),
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ProbFact =.. [NewAtom|AllArguments],
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(
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P=:=0
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->
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P1 is 0.0 ;
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(
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OldAcc=:=0
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->
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P1 is P;
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P1 is P/(1-OldAcc)
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)
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),
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NewAcc is OldAcc+P.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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convert_a_tunable((X;Y),Extra_ID,OldFacts,Facts) :-
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convert_a_tunable(X,Extra_ID,OldFacts,NewFacts),
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convert_a_tunable(Y,Extra_ID,NewFacts,Facts).
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convert_a_tunable(P::Atom,Extra_ID,OldFacts,[P::ProbFact|OldFacts]) :-
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Atom =.. [Functor|AllArguments],
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length(AllArguments,Arity),
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atomic_concat([mvs_fact_,Functor,'_',Arity,'_',Extra_ID],NewAtom),
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ProbFact =.. [NewAtom|AllArguments].
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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convert_b((X;Y),OldBody,Body,ExtraID,OldBodies,Bodies) :-
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convert_b(X,OldBody,NewBody,ExtraID,OldBodies,NewBodies),
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convert_b(Y,NewBody,Body,ExtraID,NewBodies,Bodies).
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convert_b(_::Atom,OldBody,NewBody,Extra_ID,OldBodies,[(Atom:-ThisBody)|OldBodies]) :-
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Atom =.. [Functor|AllArguments],
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length(AllArguments,Arity),
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atomic_concat([mvs_fact_,Functor,'_',Arity,'_',Extra_ID],NewFunctor),
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ProbFact =.. [NewFunctor|AllArguments],
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tuple_append(OldBody,ProbFact,ThisBody),
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tuple_append(OldBody,problog_not(ProbFact),NewBody).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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tuple_append(true,X,X) :-
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!.
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tuple_append(X,true,X) :-
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!.
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tuple_append((A,B),X,(A,B2)) :-
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X \= true,
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!,
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tuple_append(B,X,B2).
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tuple_append(X,Y,(X,Y)) :-
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X \= true,
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Y \= true,
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X \= (_,_).
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