diff --git a/packages/CLPBN/examples/School/parschema.yap b/packages/CLPBN/examples/School/parschema.yap
index 70be09835..7f39a9819 100644
--- a/packages/CLPBN/examples/School/parschema.yap
+++ b/packages/CLPBN/examples/School/parschema.yap
@@ -1,22 +1,7 @@
+/* Base file for school database. Supposed to be called from school_*.yap */
 
 :- use_module(library(pfl)).
 
-/* base file for school database. Supposed to be called from school_*.yap */
-
-%
-% bayes is a parfactor for a bayesian network,
-% first argument is target of other arguments pop(K) <- abi(K)
-% second argument is the name of a predicate to call for \phi (CPT)
-% last argument is a list of goals defining the constraints over the elements
-% of the 
-%
-
-%
-% these states that skolem variables abi(K) are in a parametric factor with
-% with \phi defined by abi_table(X) and whose domain and constraints
-% is obtained from professor/1.
-%
-
 bayes abi(K)::[h,m,l] ; abi_table ; [professor(K)].
 
 bayes pop(K)::[h,m,l], abi(K) ; pop_table ; [professor(K)].