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.

Q: Sentence 1: Two young fair girls are smiling a posing together while they ride in a boat wearing floatation vests. Sentence 2: The twin girls celebrate their birthday aboard the cruise ship.

A: Two girls smile on a boat.
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Q: Sentence 1: A side view picture of 3 band members on stage performing with lead singer in the foreground. Sentence 2: band has a big concert

A: 4 band members perform on stage
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Q: Sentence 1: There is a man fly fishing in a river with trees behind him. Sentence 2: A man isn't having any luck fly fishing in the river with trees behind it.

A:
A man is fly fishing in a river.
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