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 man wearing a black leather vest with a rebel flag patch on it. Sentence 2: A man wearing a colorful scarf and a black leather vest with a rebel flag patch on it.
A person is wearing a vest.

Sentence 1: A young girl in a costume on the ground, with a hula hoop next to her. Sentence 2: The girl is a performer.
The girl has a costume.

Sentence 1: There are trees with no leaves in the background. Sentence 2: The trees are brown.

The trees don't have leaves.