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.

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

Example Input: Sentence 1: Four older men sitting on a blue patterned rug in an ethnic looking place of worship, 3 of them wearing some sort of head covering. Sentence 2: Four men are sitting on a blue rug
Example Output: Four men are rapping at a concert

Example Input: Sentence 1: A couple are doing some shopping together. Sentence 2: Two people are purchasing items together.
Example Output:
Three guys are eating at the store together.