premise: Players from two opposing teams wearing colorful cleats struggle to gain control over a ball on an AstroTurf field. hypothesis: The players are having a party.
contradiction: Players struggle to gain control over a ball cannot have party at the same time.|contradiction: If two teams are in a struggle to gain control over a ball, then the players can't be said to be having a party.|contradiction: Either the players are at a party or on the field.