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.

Sentence 1: A football player in purple is running the ball while another in white attempts to tackle him. Sentence 2: A football player in white tries to tackle a player in purple.
A girl is sitting on her porch.

Sentence 1: An older man with glasses raises his eyebrows in surprise. Sentence 2: an older man is surprised
The man has no glasses.

Sentence 1: A woman in a red jacket is leaning on a baby stroller while talking with another woman at a train station. Sentence 2: woman leans on stroller

man plays hockey