If he understands the question and yet it covers many senses, then supposing what it says to be universally true or false, he should give it an unqualified assent or denial; if, on the other hand, it is partly true and partly false, he should add a comment that it bears different senses, and that in one it is true, in the other false; for if he leaves this distinction till later, it becomes uncertain whether originally he perceived the ambiguity.