Anchor: A young boy dressed in a black jacket it riding a scooter on the sidewalk.
Entailed: a young boy is zipping by on a scooter
Contradiction: the young man is riding a skateboard
Contradiction: the man delivered the mail
Contradiction: The steak did not taste bad, but it was definitely not good.
Contradiction: I do not know anything and that is funny.  
Contradiction: The green team has the offensive player surrounded.