Anchor: Their leader, a brute with a massive axe, pointed toward Jon.
Entailed: Their leader pointed toward Jon.
Contradiction: Their leader completely ignored Jon.
Contradiction: Don't tip
Contradiction: A million people showed up on Colorado Boulevard before the game.
Contradiction: You are certain about this.
Contradiction: Or if you want to play devil's advocate, you could argue that either stance is one that could be debated at length.