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.

[EX Q]: Sentence 1: Four casually dressed guys jumping down a stairway outdoors with a stone wall behind them. Sentence 2: Four guys are hurrying to their cars by jumping down stairs.
[EX A]: Four young men dressed in front of a wall are jumping down the stairs.

[EX Q]: Sentence 1: A man with a shaved head and a button-up shirt looks into a microscope near a poster about red blood cells. Sentence 2: A scientist studies a vaccine.
[EX A]: A man without hair near a poster about red blood cells is looking through a microscope.

[EX Q]: Sentence 1: A woman kneels at the edge of a dock reaching toward a dog leaping nearby in the water. Sentence 2: A dog leaps for a toy in the water.
[EX A]:
A woman reaches a hand toward a dog.