Anchor: It probably didn't matter, and it could hardly be worse than whatever the risers had run into beyond the hole in the present sky.
Entailed: It can't be worse that what the risers had done.
Contradiction: It defiantly mattered. 
Contradiction: I don't know where it is located. 
Contradiction: This will be much better if the guests scream and yell.
Contradiction: the swimmer is at the pool
Contradiction: The man is fixing a machine.