Anchor: I can't stand here on this ladder all day long.
Entailed: I don't have the ability to stay on the ladder for the entire day. 
Contradiction: I'll have no problem standing on the ladder for the rest of the day. 
Contradiction: At 5 o'clock, Dorcas finds her mistress fast asleep.
Contradiction: A boy in a structure.
Contradiction: A man walks with snowshoes on.
Contradiction: A boy is playing with a skateboard