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: Man in a blue motocross outfit and red helmet riding a dirt bike on a trail. Sentence 2: A man riding a dirt bike down a trail.

A: C
****
Q: Sentence 1: A man in a white shirt and tie walking across the street. Sentence 2: A woman walks across the street.

A: C
****
Q: Sentence 1: A woman in a chair staring at a white box. Sentence 2: A woman is opening a box.

A:
C
****