Anchor: Two young males watch another male skateboarding at a skate park.
Entailed: Some guys watching another on his skateboard.
Contradiction: Two girls watching a guy they like ride his skateboard.
Contradiction: This shouldn't include separating the responsibilities for authorizing transactions, processing and recording them,
Contradiction: Dogs are friends to us. 
Contradiction: A child and a woman are in front of a pine tree.
Contradiction: Waves crashing against rocks with birds flying over.