else if (exp instanceof EqualsTo)
qualified = new EqualsTo();
else if (exp instanceof GreaterThan)
qualified = new GreaterThan();
else if (exp instanceof GreaterThanEquals)
qualified = new GreaterThanEquals();
else if (exp instanceof LikeExpression)
qualified = new LikeExpression();
else if (exp instanceof MinorThan)
qualified = new MinorThan();
else if (exp instanceof MinorThanEquals)