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: A woman tosses a bag of trash into a dumpster. Sentence 2: The hairdresser threw away all the freshly cut hair.

SOLUTION: People are moving forward on the track.

PROBLEM: Sentence 1: A crowded marketplace is filled with people, including women with their heads covered with veils. Sentence 2: An islamist marketplace is busy.

SOLUTION: The market is very busy.

PROBLEM: Sentence 1: A choir, the members dressed in white tops and black pants and holding their music, are singing in front of a building. Sentence 2: An all female choir is singing.

SOLUTION:
A matching choir is singing in front of a building.