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 rehearsing, one wearing a checker broad sweater and the other playing a orange guitar. Sentence 2: Two men rehearsing.
Example Output: C

Example Input: Sentence 1: Man cleans roller coaster. Sentence 2: Cleaning roller coaster
Example Output: C

Example Input: Sentence 1: one person wearing a backpack sitting on the side of a rocky mountain. Sentence 2: A person is on a hike.
Example Output:
N