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 man wearing a brown t-shirt is talking to a woman wearing a flowered tank top at an outdoor music concert. Sentence 2: A man is talking to his wife.

SOLUTION: A man is talking to a woman

PROBLEM: Sentence 1: Onlookers view picture with wires and lights. Sentence 2: The picture is on a wall.

SOLUTION: A pictur is being looked at.

PROBLEM: Sentence 1: A man in a brown hat and red apron is attending an outdoor grill. Sentence 2: A man cooks dinner on the grill for his family.

SOLUTION:
A man attends to a grill.