Anchor: They watched as he hammered the metal, sparks flying into the black soot covered room.
Entailed: As he hammered the metal, they watched.
Contradiction: They were watching as he hammered the wood.
Contradiction: I can't agree.
Contradiction: A sign is displayed behind a man.
Contradiction: Four dogs ignoring each other in a snowy field.
Contradiction: A boy is riding a bike.