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 in black jumped with arms raised on a tennis court, as the opposing team in white walk towards the net. Sentence 2: Two tennis players taunt their opposition by jumping around and mocking them.
Example Output: N

Example Input: Sentence 1: A dog is running through a lake towards some trees. Sentence 2: A brown dog is running through a lake.
Example Output: N

Example Input: Sentence 1: A group of people with unhappy faces are gathered together most likely waiting for someone or listening to someone speak. Sentence 2: A group of people are waiting.
Example Output:
C