Mr President, I rise on a point of order. As you know, the minister is required to be directly relevant to the question, ‘Does the tax apply to quarries?’ He has gone nowhere near being responsive to the question. He plainly does not know the answer. You should direct him to the question and insist that, if he does not know the answer, he tell the Senate that he does not know the answer. If he does know the answer, he should give it.