Anchor: A pitcher in a blue shirt, on the mound, practices his grip before throwing the pitch.
Entailed: There is someone practicing his craft.
Contradiction: The is someone practicing basketball.
Contradiction: Blame the poor fellow, for all I care.
Contradiction: It is foggy outside.
Contradiction: It is really expensive, but still cheaper than a soft drink.
Contradiction: An athlete is at a track meet.