In this task, you're given a pair of sentences, sentence 1 and sentence 2, that contradict each other. Your job is to alter sentence 2 so that the pair agree with 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 laboratory technician is using a pipette. Sentence 2: A person is sleeping.
Example Output: A lab tech is using instruments.

Example Input: Sentence 1: An older gentleman taking a walk. Sentence 2: A old dog is talking a walk.
Example Output: A old man is taking a walk.

Example Input: Sentence 1: Several children running across a field of white sand. Sentence 2: The children run across the grass.
Example Output:
The children are on sand.