TASK DEFINITION: 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.
PROBLEM: Sentence 1: Several people selecting food and desert items from an outdoor buffet. Sentence 2: There are people eating outdoors.

SOLUTION: The buffet has no customers.

PROBLEM: Sentence 1: A man wearing colorful clothing and white sunglasses is playing a large drum with his hands. Sentence 2: The man is near a drum.

SOLUTION: The man begins to play the guitar.

PROBLEM: Sentence 1: lady smoking a cigarette walking Sentence 2: The lady is walking smoking a cigarette.

SOLUTION:
The lady is not a smoker.