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: The dog is jumping up beside a red wall. Sentence 2: A cat searching for milk
[A]: C

[Q]: Sentence 1: One man on stage, playing a guitar with lights in the background. Sentence 2: The man is playing music.
[A]: C

[Q]: Sentence 1: Two researchers are looking into a microscope surrounded by complex machinery. Sentence 2: The researchers went to the same university together.
[A]:
N