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 brown and white dog has is mouth open ready to catch a green ball. Sentence 2: the people were on concrete
Example Output: C

Example Input: Sentence 1: a small tan dog running in the grass with a stick in his mouth Sentence 2: A small tan dog running in the tall dead grass with a stick in his mouth.
Example Output: N

Example Input: Sentence 1: A black and white dog is playing with a large brown cow. Sentence 2: A dog is playing with a duck.
Example Output:
C