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 person dressed in blue performing a back flip. Sentence 2: A person dressed in blue performing a back flip

SOLUTION: A person dressed in blue sleeping in his bed

PROBLEM: Sentence 1: Girl in pink shirt fires at the target at a firing range. Sentence 2: The kid is practising a sport.

SOLUTION: The girls pitches a softball.

PROBLEM: Sentence 1: One guy surfing the waves in the ocean. Sentence 2: One guy on a surfboard.

SOLUTION:
Two guys watching the waves of an ocean.