TASK DEFINITION: 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.
PROBLEM: Sentence 1: A bare chested man with swimming goggles on his head with a group of swimmers behind him. Sentence 2: a man is leading a swim race

SOLUTION: a shirtless man is followed by swimmers

PROBLEM: Sentence 1: peoples sitting at the ground Sentence 2: Children are having a picnic.

SOLUTION: People are sitting.

PROBLEM: Sentence 1: One man working at a fish market while a couple of men and one woman are browsing for fish. Sentence 2: The couple of men and one woman were shopping for dinner

SOLUTION:
One man working at a fish market while a couple of men and one woman are browsing fish