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 with black hair and gray pants is standing holding a helmet and looks very dirty. Sentence 2: A man is not clean
[EX A]: C

[EX Q]: Sentence 1: A dog is running along a beach with a red object in its mouth. Sentence 2: the dog is having fun at the beach
[EX A]: N

[EX Q]: Sentence 1: In a science classroom a young man dressed in a black jacket solders a wire to a circuit board. Sentence 2: A young man is performing a project in front of his teacher
[EX A]:
N