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 dogs play together and another runs after in a field. Sentence 2: The dogs are chasing a ball in the field.
Two dogs are running in a field.

Sentence 1: A crowded marketplace is filled with people, including women with their heads covered with veils. Sentence 2: An islamist marketplace is busy.
The market is very busy.

Sentence 1: Before the concert the cameramen scan the crowd of fans. Sentence 2: There are a lot of people at the outdoor concert.

Cameramen look over the crowd at a concert.