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 ballerina dancing in front of a mountainous landscape. Sentence 2: a ballerina is dancing in front of a nice landscape
C

Sentence 1: A woman wearing a dark skirt and a t-shirt is facing a bathroom sink. Sentence 2: A woman is about to puke.
N

Sentence 1: Three men are working construction on top of a building. Sentence 2: Three men are working.

C