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 wearing a black shirt leans over a pool table to take a shot. Sentence 2: A person playing billiards.
Example Output: C

Example Input: Sentence 1: A surfer is in the air while surfing in the ocean, and there is a foamy wave crashing everywhere. Sentence 2: A surfer is surfing in the ocean.
Example Output: C

Example Input: Sentence 1: A group of women are practicing kickboxing at a gymnasium. Sentence 2: Women improve their fitness levels.
Example Output:
C