public static void FindAndInfer(FilmKnowledgeBase kb, List <ISentence> premises, ISentence conclusion, Substitution s)
{
if (premises.Count == 0)
{
ForwardChain(kb, conclusion.Substitute(s));
}
foreach (var kbSentence in kb.Sentences)
{
var unifyResult = Unify(kbSentence, premises.First().Substitute(s));
if (unifyResult.Successful)
{
FindAndInfer(kb, premises.Skip(1).ToList(), conclusion, s.Compose(unifyResult));
}
}
}