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: A surfer in a black wetsuit catching a wave while another one tries to catch up with him. Sentence 2: the surfers are on the water

SOLUTION: the woman surfer surfed alone

PROBLEM: Sentence 1: A seminar in an auditorium. Sentence 2:  A seminar in the auditorium.

SOLUTION: A seminar on a beach in the water.

PROBLEM: Sentence 1: There are five people in the picture, two guys talking near a sign for free advice, a man and women facing away and another man on a phone in the background. Sentence 2: There is only one woman in the picture.

SOLUTION:
Everyone in the photo are in a circle discussing the weather.