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: People in a city gathered around a blue station wagon. Sentence 2: People are next to a vehicle in the city.
The station wagon is green.

Sentence 1: The man in the black jacket is throwing a stick for the dog to chase. Sentence 2: The man is playing with a dog.
The man is cuddlying a cat.

Sentence 1: The boy with the blue helmet is playing with other boy. Sentence 2: Two boys are playing together.

Both boys are wearing pink helmets.