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.

Q: Sentence 1: Man in a one shirt popping wheelies in the air on a red bicycle in a path lined by grass. Sentence 2: A man is riding a bike in a trick competition.

A: A man is riding a bike.
****
Q: Sentence 1: Two young girls splashing in a puddle Sentence 2: The puddle is dirty.

A: Some girls are in some water.
****
Q: Sentence 1: Little girl in swimsuit lies on stomach in water, smiles at camera. Sentence 2: A little girl in swimsuit lies on her stomach after learning how to swim.

A:
A little girl in swimsuit lies on her stomach while smiling.
****