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 in a tank top stands next to a chrome door. Sentence 2: a man is taking a photo of a shark while deep sea diving
[EX A]: C

[EX Q]: Sentence 1: Two young men in long jackets stand under an umbrella in front of a brick wall with graffiti. Sentence 2: The artists admire their painting at the exhibit.
[EX A]: C

[EX Q]: Sentence 1: Two asian students are doing work at a chalkboard Sentence 2: Two students are doing math work.
[EX A]:
N