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: Native man in blue garb holds flaming torch on long pole in advance of a pair of decorated marching elephants. Sentence 2: The native man is doing a rain dance with the elephants.
The native man is near some elephants.

Sentence 1: A house is being demolished. Sentence 2: A wrecking ball is destroying a house.
A house is being destroyed.

Sentence 1: Someone wearing a white and blue uniform is riding a mountain bike on a bumpy trail Sentence 2: person biking up mountain

person on bike