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: Two girls clean the glass windows of an entryway while another woman speaks to them. Sentence 2: Two girls wearing scarves cleaning glass while a woman speaks to them.
Example Output: Two girls cleaning glass while a woman speaks to them.

Example Input: Sentence 1: A young girl in a costume on the ground, with a hula hoop next to her. Sentence 2: The girl is a performer.
Example Output: The girl has a costume.

Example Input: Sentence 1: You have two boys playing soccer with each other who are both going after the ball. Sentence 2: They are competing against each other.
Example Output:
The boys both have the same immediate goal.