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: Large group of people running in a race sponsored by Adidas. Sentence 2: Adidas-sponsored race participants running.
[A]: C


[Q]: Sentence 1: A smiling dark-skinned young man sits on a stool at his outdoor workbench and makes a hand gesture of "two-thumbs-up". Sentence 2: A man smiles as he finishes a project at his outdoor workbench.
[A]: N


[Q]: Sentence 1: A black dog sits in sand. Sentence 2: A dog sits in the sand.
[A]:
C