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: Several people are standing in a room eating. Sentence 2: People are eating lunch together.
Example Output: People consume food while standing.

Example Input: Sentence 1: A man wearing headphones is checking the screen of a handheld device while on the street. Sentence 2: Sue was looking at her ipad.
Example Output: Bob was wearing his headphones and checking his ipod while walking.

Example Input: Sentence 1: Two people walking down a checkered sidewalk in front of a red and yellow cone. Sentence 2: People walking through an airport.
Example Output:
People waking on a sidewalk.