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: A woman with a headscarf and a shawl stands in front of a shop selling produce and meat. Sentence 2: a woman stands outside a store

SOLUTION: a woman butchers a lamb on the beach

PROBLEM: Sentence 1: Policemen in riot gear, along with two police on horseback are charging a crowd that are behind a barrier. Sentence 2: Policemen are dealing with a crowd outside.

SOLUTION: Policemen in riot gear are raiding a house.

PROBLEM: Sentence 1: A man excitedly pushing in lawn mower in the backyard of a house. Sentence 2: A man is using a lawn mower.

SOLUTION:
A man is inside a building.