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 neither agree nor 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: Three children playing on a floor with toys. Sentence 2: The children are having fun.
Example Output: Three young boys are playing with toy cars.

Example Input: Sentence 1: Three people dressed in blue, white and black leotards are being held up by the hands of a set of two people each on the ground dressed in the same outfit as people look on. Sentence 2: There are five people doing a stunt.
Example Output: There are five cheerleaders practicing for a tournament.

Example Input: Sentence 1: A surgeon calibrates his machinery. Sentence 2: The surgeon takes care of his machinery.
Example Output:
The surgeon always calibrates before a surgery.