TASK DEFINITION: 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.
PROBLEM: Sentence 1: Two guys performing rock concert, one has short blond-hair who is singing, and the second has long blond-hair and is jamming out on his guitar. Sentence 2: the people are performing

SOLUTION: the children sleep in the living room

PROBLEM: Sentence 1: Two children are using pruning tools in the yard. Sentence 2: A couple of children are outside using gardening tools.

SOLUTION: Two children are having breakfast.

PROBLEM: Sentence 1: A father watching over his baby while sitting on a rock. Sentence 2: The man is a father.

SOLUTION:
The man is on mars.