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 crowd of people walk next to a train. Sentence 2: They are going on a trip.
N

Sentence 1: An elderly woman with a bag walking under an airport sign. Sentence 2: An old woman is actually a man.
C

Sentence 1: A man is performing some music. Sentence 2: The man is a famous chef.

C