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.

Q: Sentence 1: Man in his boxers carving a pumpkin. Sentence 2: A man is using a knife.

A: C
****
Q: Sentence 1: A man passed out on the ground in the street. Sentence 2: The man is old

A: N
****
Q: 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.

A:
C
****