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 red shirt is holding a little boy in a blue shirt Sentence 2: A woman in red shirt is holding a little girl
C

Sentence 1: A man with black hair and gray pants is standing holding a helmet and looks very dirty. Sentence 2: A man is not clean
C

Sentence 1: a dirt bike rider rides across the rock. Sentence 2: the dirt bike rider rode across the grasssy field

C