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 person is doing tricks on a bicycle in a city. Sentence 2: Someone is doing tricks on a bicycle in a city.
C

Sentence 1: A man is standing in front of a brick storefront wearing a black jacket. Sentence 2: A boy is waiting for the bus.
C

Sentence 1: Two men and one woman are playing bagpipes in a kitchen. Sentence 2: There are four people in the kitchen.

N