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 green shirt on the runway fuels up a jetliner. Sentence 2: The man is preparing to ride an airplane.
Example Output: N

Example Input: Sentence 1: A woman in a white dress is singing, a man in white dress is playing drums. Sentence 2: The woman is singing in front of a large crowd.
Example Output: N

Example Input: Sentence 1: A group of adults be led by an older gentleman in an exercise involving a group-effort to stabilize a long rod. Sentence 2: The adults are with an older gentleman
Example Output:
C