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 young boy is swimming with goggles. Sentence 2: A boy swimming.
Example Output: C

Example Input: Sentence 1: A man watches a child swim in a shallow river. Sentence 2: The man and child are father and son.
Example Output: N

Example Input: Sentence 1: A woman behind a glass smiling and holding the peace sign. Sentence 2: A woman with long hair is smiling and holding a peace sign.
Example Output:
N