Anchor: Dave frowned, and then relaxed.
Entailed: Dave relaxed and frowned.
Contradiction: Dave is anxious.
Contradiction: Kid's are never forbidden from an activity merely politely asked.
Contradiction: Rushing toward the ground, the bird had dipped downward.
Contradiction: Nobody is costuming.
Contradiction: I have observed in both my students and my friends a sense of them feeling that America is in the process of losing it.