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 football player wearing an orange uniform smiling and holding the football. Sentence 2: A football player dives through the mud to catch the game winning ball.

SOLUTION: A football player in his uniform smiles and poses with his football.

PROBLEM: Sentence 1: A female athlete wearing white is warming up by stretching. Sentence 2: A girl in black is stretching alone on the field.

SOLUTION: An athlete in white is stretching.

PROBLEM: Sentence 1: The man is playing the acoustic guitar while the other men make gestures Sentence 2: A guitar is being played by a woman.

SOLUTION:
An acoustic guitar is being played.