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: Pedestrians interact with street artists. Sentence 2: Street artists are interacting with pedestrians.
The street artists do not acknowledge the pedestrians

Sentence 1: A man is helping another man after a fall on the street. Sentence 2: The man is behind a good samaritan by helping another man.
The man never fell.

Sentence 1: An elderly woman sits on the sidewalk against a dirty wall with her legs crossed and her hands in her lap. Sentence 2: An elderly woman has her hands in her lap.

Nobody is sitting.