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: A woman walking a bike down a busy sidewalk. Sentence 2: A person walking a bike down a busy sidewalk.
A man walking a bike down a busy sidewalk.

Sentence 1: A gentleman wearing a hat and a blue button-up shirt is painting a city scene outside on a sunny day. Sentence 2: The gentleman is enjoying nice weather.
a woman poses for a nude portrait

Sentence 1: A man stands on boards on top of a huge ladder. Sentence 2: A man on a tall ladder on boards.

A man is doing a handstand on top of a huge ladder.