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 girl wearing a pink and black shirt and jeans fixes her hair before walking up the stairs. Sentence 2: A girl is wearing a shirt.
A girl is bald.

Sentence 1: A man wearing no shirt climbs a steep cliff. Sentence 2: A shirtless man was climbing up the face of the cliff.
The lady was hiking the mountain.

Sentence 1: A cyclist is airborne over a jump in a public skate and bike park. Sentence 2: A bicycle is off the ground.

The cyclist is eating twinkies at the park.