premise: An umpire of a little league youth baseball game calls a player wearing a red helmet safe at home plate as a n opposing player in a blue shirt tries to tag him out while onlookers watch from behind a fence. hypothesis: There is an umpire of a little league baseball game calling a player safe.
entailment: For an umpire to call a player safe at home plate a necessary condition is that an umpire call a player safe.