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 view of a city sidewalk, with 4 passersby in the foreground. Sentence 2: The people are outside.

SOLUTION: The view is of a farm and empty field.

PROBLEM: Sentence 1: People are standing outside of a building. Sentence 2: The building had people near it.

SOLUTION: The people were all in the courtroom.

PROBLEM: Sentence 1: An upset girl sits on a log, head in hands, in front of a bicycle lodged in a tree. Sentence 2: A girl is sad as she looks at a bicycle stuck in a tree.

SOLUTION:
A happy girl rides her bike near a tree.