FOLParser parser = new FOLParser(domain);
CNFConverter cnfConv = new CNFConverter(parser);
// x=y
Sentence sent = parser.parse("x = y");
CNF cnf = cnfConv.convertToCNF(sent);
Assert.assertEquals("[x = y]", cnf.toString());
// x!=y
sent = parser.parse("NOT(x = y)");