TASK DEFINITION: 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.
PROBLEM: Sentence 1: Brown dog with white marking on forehead coming down cement steps. Sentence 2: A brown dog is coming down with a stick.

SOLUTION: A brown dog is coming down.

PROBLEM: Sentence 1: Four ice skaters racing around a corner. Sentence 2: The people are all on the same team.

SOLUTION: The people are racing.

PROBLEM: Sentence 1: An older man with white hair, a light colored shirt and dark pants hammers at a glowing-hot piece of metal that he has steadied on an anvil. Sentence 2: The man is working.

SOLUTION:
The man has white hair.