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 lady in a pink coat, black slacks, and brown shoes is sitting on a bench. Sentence 2: A lady is reading a book on a bench.
A person is sitting on a bench.

Sentence 1: A young man rides a bike while carrying a shovel as he passes a woman with a basket. Sentence 2: A young mad rides a blue bike.
A young man rides a bike.

Sentence 1: A man is carrying a mechanical device on a street. Sentence 2: A man is carrying a vacuum on a street.

A man is carrying something on a street.