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.

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

Example Input: Sentence 1: A man in a red shirt holds a beer can and hammers while a man in a white shirt looks on. Sentence 2: the man has a beer can
Example Output: the man does not have a beer can

Example Input: Sentence 1: A blond woman with a white tank top and white pants is holding a receipt while standing in a lobby with doors behind her. Sentence 2: The woman is standing indoors.
Example Output:
a woman builds a sub sandwich for a heavyset man