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 in a black shirt and jeans stands at a microphone holding a guitar. Sentence 2: The man is performing.
Example Output: C

Example Input: Sentence 1: A person is doing tricks on a bicycle in a city. Sentence 2: Someone is doing tricks on a bicycle in a city.
Example Output: C

Example Input: Sentence 1: a content skier in a yellow jacket posing for a picture on the slopes. Sentence 2: A skier poses after a competition.
Example Output:
N