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: African children are being taught by a teacher. Sentence 2: A group of students are listening to their teacher in Africa.

SOLUTION: A group of students play at recess.

PROBLEM: Sentence 1: Boy in pajamas, with red and yellow toy, seated on tire near plants. Sentence 2: Children in pajamas are sitting on a tire.

SOLUTION: Boys in formal suits are waiting to attend a wedding.

PROBLEM: Sentence 1: Police on horseback watching the crowd as they move through the streets. Sentence 2: Police are riding horses

SOLUTION:
The police are in cars