Anchor: Where is the rest of his racket?
Entailed: A person is missing part of his racket.
Contradiction: A person is sleeping.
Contradiction: A man is playing the drums alone.
Contradiction: Nasa's space exploration program has struggled since the moon landings.
Contradiction: The guidelines were never conveyed to the program through the release of Program Letters. 
Contradiction: They had a lot of performance measures.