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.

Sentence 1: A boy climbing a mountain. Sentence 2: He is going to the top of that mountain
N

Sentence 1: The kayaker braces himself as he goes down the river. Sentence 2: The kayaker braces himself
C

Sentence 1: A person in a blue outfit is riding a gray horse. Sentence 2: A girl in pink is riding a pony.

C