In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly contradict each other. Generated sentences must be short, with less than 15 words. New information can be introduced. Avoid using pronouns to confuse the subject of the sentence.

Sentence 1: Two guys barbecuing, one in blue shirt bending down, while the other in black shorts stands facing his back to the camera. Sentence 2: Dinner is being prepared by the two brothers.
Two men are barbecuing.

Sentence 1: A fish sellers stock is looked upon by two old men. Sentence 2: two men are going to buy the fish
A group of men watch another man clean a fish.

Sentence 1: A group of men cleaning a floor. Sentence 2: a group of men are paid very poorly

a group of men are doing some work