AIMA.Core.Logic.Propositional.Visitors.SymbolClassifier.getSymbolsIn C# (CSharp) Method

        public List<Symbol> getSymbolsIn(Sentence sentence)
        {
            return new SymbolCollector().getSymbolsIn(sentence);
        }
    }

            public ClauseSymbols(Sentence clause1, Sentence clause2)
            {

                SymbolClassifier classifier = new SymbolClassifier();

                clause1Symbols = classifier.getSymbolsIn(clause1);
                clause1PositiveSymbols = classifier.getPositiveSymbolsIn(clause1);
                clause1NegativeSymbols = classifier.getNegativeSymbolsIn(clause1);

                clause2Symbols = classifier.getSymbolsIn(clause2);
                clause2PositiveSymbols = classifier.getPositiveSymbolsIn(clause2);
                clause2NegativeSymbols = classifier.getNegativeSymbolsIn(clause2);

                positiveInClause1NegativeInClause2 = SetOps.intersection(
                        clause1PositiveSymbols, clause2NegativeSymbols);
                negativeInClause1PositiveInClause2 = SetOps.intersection(
                        clause1NegativeSymbols, clause2PositiveSymbols);

            }