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.

Ex Input:
Sentence 1: Two girls sit back to back. Sentence 2: Two girls are posing for a picture.

Ex Output:
two girls are sitting together.


Ex Input:
Sentence 1: a man wearing a black jacket stands, holding an open book in front of a chalkboard and globe. Sentence 2: A tall man.

Ex Output:
The street vendor was selling bananas.


Ex Input:
Sentence 1: A man is riding a bike on a steep tilt. Sentence 2: The man rides the yellow bike.

Ex Output:

A man is riding a bike.