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.

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 man is riding a bike.

Sentence 1: A smiling construction worker with a white helmet. Sentence 2: He has been hit on the head before
His head is protected

Sentence 1: A little girl, with long blond-hair and wearing a dress, looking at her refection in a puddle. Sentence 2: The blonde haired girl is wearing a dress that has sunflowers on it, while staring at a puddle.

A young girl watches her reflection in the water.