Anchor: Two football players in hike formation.
Entailed: the football players are in hike formation
Contradiction: the 3 soccer players are dacing merrily
Contradiction: The land is not easily defended and not bordered by water.  
Contradiction: Many illegal immigrants think they have no rights.
Contradiction: She does not write her own music herself.
Contradiction: The EPA was asked to include assumptions about compliance by utilities.