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: A woman playing at a slot machine. Sentence 2: A woman is hoping to win the slot machine jackpot.
A woman is in front of a machine.

Sentence 1: Woman talking to friend while walking dog outside on a sunny day. Sentence 2: The friend is female.
There is a dog outside.

Sentence 1: An excavator working at a construction site. Sentence 2: A man is putting the final touches on a new building.

A worker is doing labor at a site.