Anchor: Robertson sees it as a tool to keep his complex as clean and safe as possible.
Entailed: To Robert, it's an instrument that keeps his complex as clean and safe as possible.
Contradiction: To Robert, it's an instrument that keeps his complex very dirty. 
Contradiction: Two children are playing basketball, while their black dog is sitting at home.
Contradiction: two people do karate
Contradiction: The people are walking.
Contradiction: The man is near a truck.