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: A man in a orange jacket and blue backpack snowboarding down a mountain in pure white snow. Sentence 2: A man is skiing down the mountainside.
C

Sentence 1: Man cleans roller coaster. Sentence 2: Cleaning roller coaster
C

Sentence 1: A gathering of what appear to be tourists mill about on an urban plaza that includes a large fountain showcasing a tall sculpture with a nautical theme. Sentence 2: Some people are gathered in the plaza for a company meeting.

N