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 runner winces as he runs. Sentence 2: His leg fell off while he was running.
C

Sentence 1: Two woman ride a bicycle together as they pass a painting on a wall. Sentence 2: The women recognized the painting on the wall as one of their good friend's works.
N

Sentence 1: The man is standing on the corner playing music. Sentence 2: The man is doing card tricks.

C