You will be given a definition of a task first, then some input of the task.
Determine whether the two given sentences clearly agree with each other (entailment), disagree with each other (contradiction), or if this cannot be determined (neutral). Answer must be the letters E, C, and N, respectively.

a big black dog jumps in the air to catch the tennis ball in his mouth. <sep> A dog is outdoors.
Output:
N