Anchor: A man is sitting on a motorcycle on the sidewalk.
Entailed: A man is sitting on a motorcycle.
Contradiction: A man in black is playing with his cat on Sunday.
Contradiction: I have no chance of ever seeing one of them.
Contradiction: When parents are trying to decide whether or not to have more children they typically consider costs more than benefits 
Contradiction: A boy is throwing basketballs in the park.
Contradiction: A man is leading 6 others.