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 vendor sits in the middle of a display of glasses at a street market in an Asian country. Sentence 2: A vendor joyously sits

SOLUTION: A vendor sits

PROBLEM: Sentence 1: two men standing in the snow, one looking at the camera, the other reading a paper by a sign. Sentence 2: Friends playing in the snow

SOLUTION: One man standing in the snow is looking at the camera while another is reading a paper.

PROBLEM: Sentence 1: A man and his father look very amused as the younger man in the blue shirt and masters hat hold up a barbie doll. Sentence 2: A father and son watch a younger man play with a barbie.

SOLUTION:
A man and his father look very amused.