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: Two men play their instruments while a third sings. Sentence 2: The man sings while two men play their instruments.
Example Output: C

Example Input: Sentence 1: A group dressed in wintery attire of people on a sidewalk in Washington D.C. Sentence 2: People standing on a sidewalk.
Example Output: C

Example Input: Sentence 1: A white dog runs on the grass. Sentence 2: A white dog is chasing a squirrel.
Example Output:
N