Anchor: It shouldn't be any longer than four feet or it will be too heavy.
Entailed: If it's bigger than four feet then it will be too heavy to carry. 
Contradiction: The large dog was the size of a dinosaur. 
Contradiction: The trash box is numbered 99.
Contradiction: a couple ladies are cooking
Contradiction:  I know for a fact that we have a system in place to rehabilitate all criminals, no matter the crime.
Contradiction: The man is working on the roof.