Anchor: He had entered the squalid room to find that great man, the friend of a lifetime, dead betrayed out of his own mouth.
Entailed: When he arrived, he found the great man dead.
Contradiction: The great man was alive and well, talking to him.
Contradiction: Tuppence was upset to see Peche Melba, and ignored her for the rest of the day.
Contradiction: A man is training a German Shepherd.
Contradiction: There are absolutely zero unquantified benefits for ozone and PM. 
Contradiction: He started to work on his idea.