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: Two vehicles are parked outside a small grocery store. Sentence 2: Two vehicles are not moving.
Example Output: The vehicles are driving away from the grocery store.

Example Input: Sentence 1: A boy and three girls in blue school uniforms walk down a dirt-covered road. Sentence 2: The children are wearing their school uniforms.
Example Output: The children are playing in the dirt.

Example Input: Sentence 1: I think the construction work is going on here. Sentence 2: Construction work is happening.
Example Output:
I think they are baking a pie here.