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: A car is driving towards a green mountain. Sentence 2: A car is driving away from the green mountain.

A: C
****
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 motorcyclist is about to fall over. Sentence 2: A motorcyclist is driving on the road.

A:
N
****