In this task, you're given a pair of sentences, sentence 1 and sentence 2. Your job is to choose whether the two sentences clearly agree (entailment)/disagree (contradiction) with each other, or if this cannot be determined (neutral). Your answer must be in the form of the letters E, C, and N respectively.

[EX Q]: Sentence 1: A man wearing an astro boy shirt and a green hat cleans a pool. Sentence 2: A tired man cleans his pool.
[EX A]: N

[EX Q]: Sentence 1: Two boys stand in front of vending machines. Sentence 2: Two girls sell lemonade.
[EX A]: C

[EX Q]: Sentence 1: A black dog with a white spot on it's neck holding a frisbee looking away from the camera. Sentence 2: Black cat holding frisbee
[EX A]:
C