private void updateAnswers() {
        answerMemoryModel.clear();
        ArrayList<Conditional> answers = engine.getAnswer();
        if (answers.isEmpty()) {
            answerMemoryModel.addElement(new Fact("No Results Found"));
        } else if (answers.size() > 1) {
            answerMemoryModel.addElement(new Fact("All possible answers"));
        }
        for (Conditional c : answers) {
            answerMemoryModel.addElement(new Fact(c.getFact()));
        }
    }