Anchor: Their interest is in protecting the shipyard in Quincy, Mass.
Entailed: They want to protect the shipyard in Quincy, Mass.
Contradiction: They don't want to protect the shipyard in Quincy, Mass.
Contradiction: THe people are walking on a dirt path.
Contradiction: How are we going to accomplish our goals? 
Contradiction: I want to say a lot more.
Contradiction: the two workers were working together