premise: Young women compete in a relay event at a swimming pool while teammates cheer or anxiously await their turns. hypothesis: The girl is a part of her H.S. varsity swim team, and is swimming lead on the 100m butterfly.
neutral: While the women are competing in a relay event at a swimming pool, the women may or may not be members of a H.S. varsity swim team.  The girl is not necessarily the swimming lead or on the 100m butterfly.