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: A man in white dumping carts into the dumpster. Sentence 2: A man dumps out the trash he cleaned out of his garage.
Man putting carts in dumpster.

Sentence 1: A man with a striped shirt that has a white bag over his shoulder is standing at a station with speakers about a TV screen and controls under the TV screen. Sentence 2: A man is at the station with his friend.
There is a man with a bag over there.

Sentence 1: Four boys in water are hanging on to the concrete ledge. Sentence 2: the four boys are swimming

four boys are holding onto the concrete ledge