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 girl wearing a blue shirt, black tights and faded black boots with red painted fingernails is sitting on step outside of shop window while eating a sandwich. Sentence 2: A girl is eating a BLT sandwich.

SOLUTION: A girl is eating.

PROBLEM: Sentence 1: A man with dreadlocks, wearing a mask and a tribal costume, dancing on a street. Sentence 2: A man is performing for tips.

SOLUTION: A man is dancing.

PROBLEM: Sentence 1: The girl in the back is wearing a black shirt. Sentence 2: The pretty girl is wearing black.

SOLUTION:
The girl has a black shirt on.