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.

Example Input: Sentence 1: A man jumps over a wave while riding a surfboard. Sentence 2: A woman is surfing
Example Output: C

Example Input: Sentence 1: a man standing outside on a rainy day. Sentence 2: The man cannot find his umbrella.
Example Output: N

Example Input: Sentence 1: A man in a Hawaiian shirt putting together an airplane model. Sentence 2: The man is wearing a shirt.
Example Output:
C