Given the task definition and input, reply with output. 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: A young boy tries to catch an orange and yellow Frisbee in a green, grassy field. Sentence 2: A boy is playing with his favorite frisbee.
A boy is in a field