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 woman playing a guitar on a makeshift stage, under a tree. Sentence 2: A woman plays guitar.
A woman walks towards the stage.

Sentence 1: Children playing with a bike in the sand. Sentence 2: Children are having fun.

Children are playing flute on a beach.