update package locations to a subdir packages

packages/cplint/examples/paper_ref_simple.cpl

@@ -0,0 +1,45 @@
+/*
+   ?- s([cites_cited(c1,Pap)],P).
+P = 0.333333333333333,
+Pap = p1 ? ;
+P = 0.333333333333333,
+Pap = p2 ? ;
+P = 0.333333333333333,
+Pap = p4 ? ;
+no
+   ?- Action (h for help): c
+   | s([cites_citing(c1,Pap)],P).
+P = 0.5,
+Pap = p3 ? ;
+P = 0.5,
+Pap = p5 ? ;
+no
+
+*/
+paper(p1).
+
+paper(p2).
+
+paper(p3).
+
+paper(p4).
+
+paper(p5).
+
+paper_topic(p1,theory).
+
+paper_topic(p2,theory).
+
+paper_topic(p4,theory).
+
+paper_topic(p3,ai).
+
+paper_topic(p5,ai).
+
+cites(c1).
+
+uniform(cites_cited(C,P),P,L):-
+    bagof(Pap,paper_topic(Pap,theory),L).
+
+uniform(cites_citing(C,P),P,L):-
+    bagof(Pap,paper_topic(Pap,ai),L).