Anchor: User identification codes and passwords provide less control over data than do electronic signatures.
Entailed: User identification codes and passwords provide less control over data than an electronic signature
Contradiction: User identification codes and passwords provide more control over data than an electronic signature
Contradiction: That's what the turtles in the article were claiming. 
Contradiction: Her cheeks flushed when she gave him her hand.
Contradiction: An old couple are walking down the stairs.
Contradiction: A dog is being judged in a show.