Anchor: Since then, there's been no mention of tollbooths on the bridge to the 21 st century.
Entailed: Since then, no mention of bridge tollbooths on that bridge have been made in this century.
Contradiction: Since then, plenty of mentions of bridge tollbooths on that bridge have been made in this century.
Contradiction: I don't think I can figure the basics out.
Contradiction: Three children are playing.
Contradiction: A Scotsman is wearing a bathing suit.
Contradiction: People are doing karate.