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: Quarterback Tim Tebow is throwing a pass as his team guards against the opposing team. Sentence 2: A football player throwing a pass.
C

Sentence 1: A man in a black shirt and jeans stands at a microphone holding a guitar. Sentence 2: The man is performing.
C

Sentence 1: A man in a T-shirt is playing chess. Sentence 2: A guy is playing a boardgame.

C