Undocumented predicates
The following predicates are exported, but not or incorrectly documented.
-  wn_res(Arg1, Arg2, Arg3)
 
-  wn_res_nondet(Arg1, Arg2, Arg3)
 
-  wn_jcn(Arg1, Arg2, Arg3)
 
-  wn_jcn_nondet(Arg1, Arg2, Arg3)
 
-  wn_lin(Arg1, Arg2, Arg3)
 
-  wn_lin_nondet(Arg1, Arg2, Arg3)
 
-  wn_information_content(Arg1, Arg2)