Anchor: Thinking back later, I realized that he could have killed me while I was wrestling with the big man, but he didn't.
Entailed: I realized he could have killed me, but he didn't.
Contradiction: I don't think he could have killed me.
Contradiction: A person sits under a tree.
Contradiction: Is it wide right?
Contradiction: A man is diving off a cliff
Contradiction: A pool, sauna, and gym are available.