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 with a blue sports bra doing weightlifting. Sentence 2: A woman doing weightlifting.
A woman with a red training bra doing push ups.

Sentence 1: A teenage boy is holding his skateboard. Sentence 2: A boy is posing with a skateboard.
A boy is posing with a bicycle.

Sentence 1: A graveyard worker is digging, or filling a grave, another person is on his cellphone, leaning on a tombstone. Sentence 2: Some people are in a graveyard.

a girl sleeps on a plane