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 black and white dog is chasing a ping Frisbee. Sentence 2: The black and white dogs are chasing a duck.
C

Sentence 1: A construction worker in overalls and a yellow construction hat shovels dirt into a wheelbarrow. Sentence 2: A man is at work
C

Sentence 1: A girl in a blue dress stands on a wooden plank that's affixed to a tree, staring downward while maintaining her balance. Sentence 2: the girl is stretching her legs

C