public static void runEngine(String file[], String tell, String ask)
	{
		// This if statement calls the Truth Table method
		if(file[0].toUpperCase().equals("TT"))
		{
			TruthTable tt = new TruthTable(ask, tell);
			System.out.println(tt.printResult());
		}
		// This if statement calls the Forward Chaining method
		else if(file[0].toUpperCase().equals("FC"))
		{
			ForwardChaining fc = new ForwardChaining(ask, tell);
			System.out.println(fc.printResult());
		}
		// This if statement calls the Backward Chaining method
		else if(file[0].toUpperCase().equals("BC"))
		{
			BackwardChaining bc = new BackwardChaining(ask, tell);
			System.out.println(bc.printResult());
		}
		
	}