Anchor: A football player blocks someone from the other team so his teammate can pass the ball down the field.
Entailed: A football player blocks the other team so his teammate can throw the ball.
Contradiction: A football player jumps offsides.
Contradiction: Two friendly people shake hands in a friendly way.
Contradiction: A soccer playes kicks a ball.
Contradiction: There is no one on the field.
Contradiction: A teammate misses the block as his quarterback is tackled to the field.