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.

Sentence 1: Emergency Medical Teams working to help a man involved in an automobile accident. Sentence 2: Medical teams working to save a hurt man.
N

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.
N

Sentence 1: A man holds a tent on a mountain campsite. Sentence 2: There are no tents at the campsite.

C