Anchor: Workers are doing something to a tree.
Entailed: People are working on a tree.
Contradiction: Workers pointedly ignore a tree.
Contradiction: I wasn't invited to his wedding.
Contradiction: There'd be no way to top the adventure that comes with colonizing other worlds.
Contradiction: They had used only two dozen people in total.
Contradiction: if I remember correctly, he said that he'd give her a big ring