Anchor: He tried to halt the Dayaks' piracy and head-hunting while defending their more  morally acceptable  customs.
Entailed: He wanted to put an end to piracy while retaining their customs.
Contradiction: He wanted to put an end to all Dayak culture and life.
Contradiction: The package would rest safely in the hands of his most trusted friend.
Contradiction: Some people are on a boat.
Contradiction: Classified systems are the only systems in use. 
Contradiction: Women are walking down the street.