Anchor: Make sure the ropes stay tight while we see if the thing can be moved."  He started to slip over the side, hanging by his fingertips.
Entailed: He was trying to move the thing by hanging from his fingertips.
Contradiction: He was certain that the thing could not be moved and so climbed down.
Contradiction: This is an outdoor market where people buy meat.
Contradiction: You can see 62 miles from the lighthouse on a clear day.
Contradiction: The teens are inside watching television.
Contradiction: A dog is running outside with a toy.