You will be given a definition of a task first, then some input of the task.
In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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: Two very young boys and an adult are playing with big preschool Legos and a red dish-shaped play cushion that's filled with balls on a white carpet in front of a gray couch. Sentence 2: Two boys and an adult are building something with Legos in the living room.
Output:
Boys and an adult are playing together.