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 lady wearing a black jacket is loading bags up with flowers on a bike. Sentence 2: The woman is hailing a cab on a city street.
C

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 tri-colored dog is jumping over obstacles. Sentence 2: The dog is excercising

C