2:- use_module(library(viterbi)).    3
    4:- if(current_predicate(use_rendering/1)).    5:- use_rendering(c3).    6:- use_rendering(graphviz).    7:- use_rendering(table,[header(['Multivalued variable index','Rule index','Grounding substitution'])]).    8:- endif.    9
   10:- viterbi.   11
   12:- begin_lpad.   13
   14win :- red, green.
   15win :- blue, yellow.
   16
   170.4::red.
   180.9::green.
   190.5::blue.
   200.6::yellow.
   21
   22
   23:- end_lpad.