Anchor: A rather large blond dog with a black collar chases a blue and yellow toy.
Entailed: A large dog
Contradiction: a man eating a dog
Contradiction: A man digs a hole with a shovel.
Contradiction: The GSA Project Management Center of Expertise Expertise was established not too long ago.
Contradiction: Tuppence refused to get up. 
Contradiction: However, it wasn't you that created it.