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 dirt biker stands in the sunset. Sentence 2: A bicyclist watches the sunrise.
C

Sentence 1: A child scales a climbing wall. Sentence 2: A girl is climbing a wall.
N

Sentence 1: A man in costume looks rather amusing. Sentence 2: A man is naked

C