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.

Example Input: Sentence 1: A red race car leaves smoke behind. Sentence 2: A race car is red.
Example Output: C

Example Input: Sentence 1: Three guys playing outside acting silly. Sentence 2: Three black guys acting silly outside.
Example Output: N

Example Input: Sentence 1: A man is running on a bridge, while a dog is standing between two men on the bridge as well. Sentence 2: A man is running on a bridge, while a large brown dog is standing between two men on the bridge also.
Example Output:
N