What should a non hallucinating human reply to 'Compose a single-line avant-garde poem about rainbows, without mentioning rainbows'? Also my objection wasn't t

What should a non hallucinating human reply to 'Compose a single-line avant-garde poem about rainbows, without mentioning rainbows'? Also my objection wasn't that it hallucinates, my objection was to the OP's point that it only hallucinates. If I ask it what is 2*2 and it answers 4 would that be a hallucination or not?