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.

Ex Input:
Sentence 1: Three bicyclists riding down a steep course wearing helmets. Sentence 2: the bicyclists are being careful down the steep course.

Ex Output:
The bicyclists are wearing helmets.

Ex Input:
Sentence 1: Man in blue shirt focusing on grilling hamburgers. Sentence 2: The man is making food for his family.

Ex Output:
The person is cooking.

Ex Input:
Sentence 1: Two young fair girls are smiling a posing together while they ride in a boat wearing floatation vests. Sentence 2: The twin girls celebrate their birthday aboard the cruise ship.

Ex Output:
Two girls smile on a boat.