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.

Q: Sentence 1: two crew people talk about an race car engine during a race car show. Sentence 2: Two people are having a discussion.

A: C
****
Q: Sentence 1: A man wearing a blue shirt makes a grouchy face. Sentence 2: A woman wearing a blue shirt makes a grouchy face.

A: C
****
Q: Sentence 1: A man and a woman are singing into microphones. Sentence 2: The man and woman are lipsynching into a microphone.

A:
C
****