In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair 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: Many people on a street while vendors sell items. Sentence 2: The vendor is selling items on a street.
The vendor is inside a museum.

Sentence 1: A woman in a white shirt plays a black guitar. Sentence 2: The woman is performing a musical piece.
The woman is practicing on a set of drums.

Sentence 1: A person is climbing a rock while holding onto a white rope. Sentence 2: The person is outdoors.

The rope is made of black nylon.