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.

Example Input: Sentence 1: A girl wearing a blue shirt, black tights and faded black boots with red painted fingernails is sitting on step outside of shop window while eating a sandwich. Sentence 2: A girl is eating a BLT sandwich.
Example Output: A girl is eating.

Example Input: Sentence 1: A guy in the air doing wakeboarding. Sentence 2: A man is wakeboarding on his birthday.
Example Output: A man is outdoors.

Example Input: Sentence 1: The young child with red-hair bounced on the trampoline. Sentence 2: A young child is playing with her friends.
Example Output:
A young child with red hair is bouncing up and down.