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.

[Q]: Sentence 1: Two dogs play together and another runs after in a field. Sentence 2: The dogs are chasing a ball in the field.
[A]: Two dogs are running in a field.


[Q]: Sentence 1: a man wearing a black jacket stands, holding an open book in front of a chalkboard and globe. Sentence 2: A tall man.
[A]: The street vendor was selling bananas.


[Q]: Sentence 1: A very agile bicyclist performing some stunts on a beautiful morning. Sentence 2: A person is showing off.
[A]:
A person is riding a bike.