TASK DEFINITION: In this task, you're given a pair of sentences, sentence 1 and sentence 2, that contradict each other. Your job is to alter sentence 2 so that the pair agree with 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 brown dog is sniffing the ground by a cow that is standing behind a wooden fence. Sentence 2: boy at mcdonalds

SOLUTION: dog smells ground

PROBLEM: Sentence 1: A referee is watching a professional football game in the grass. Sentence 2: A man claps his hands.

SOLUTION: A referee watches a game.

PROBLEM: Sentence 1: There is a bike race in London during 2012, there is a purple banner saying such, the bikers are on the left of the picture and the crowd watching and photographing the bikers is on the right-hand side. Sentence 2: The banner is red.

SOLUTION:
A purple banner depicts a bike race that will happen in London in 2012.