In this task, you're given a pair of sentences, sentence 1 and sentence 2, that contradict each other. Your job is to alter sentence 2 so that the pair agree with 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.

[EX Q]: Sentence 1: A man in hiking gear, walking across a shallow waterfall. Sentence 2: A man is swimming across a waterfall.
[EX A]: A man is walking.

[EX Q]: Sentence 1: A man with a beard and no shirt on has his bicycle upside down and is repairing it. Sentence 2: The man has no facial hair and is wearing a shirt.
[EX A]: A man repairs his bike.

[EX Q]: Sentence 1: A dog holds a large stick in its mouth. Sentence 2: The dog lay on its back, hoping that the children would come by and scratch its tummy!
[EX A]:
The dog had something in its mouth.