Anchor: A US purchase of the island from Spain had long been on the agenda, even though Marta had warned of becoming a satellite of the United States ( I know the Monster, because I have lived in its lair, he wrote).
Entailed: US purchased an island from Spain.
Contradiction: US did not purchase an island from Spain.
Contradiction: He would never threaten to hurt even a fly. 
Contradiction: It's okay, I forgive you.
Contradiction: The truckers came quietly.
Contradiction: We may have to shoot him even tho we do not want to.