premise: 2 male swimmers training, with one of them wearing a blue hat, and one of them wearing a red hat. hypothesis: Two of the men on the swim team wearing swim caps are training together in the pool.
neutral: Just because 2 swimmers are training does not mean that they are on the swim team.  Wearing hats does not necessarily mean the hats are swim caps.  And just because they are both in the pool training does not mean that they are training together.