instruction:
In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair 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.
question:
Sentence 1: A man in a blue jacket smiles back at the camera, positioned in front of a lake or large river on a clear sunny day. Sentence 2: A man is posing for a picture outside.
answer:
A man is snowboarding down a huge mountain.


question:
Sentence 1: A basketball player is making a jump shot with an opposing player in the foreground. Sentence 2: Someone making a jumper and playing basketball.
answer:
A basketball player dunks the ball.


question:
Sentence 1: Man smiles next to a horseshoe crab on a beach. Sentence 2: A man is on the beach.
answer:

A man frowns next to a dead jellyfish on a beach.