Anchor: For a more comprehensive discussion of alternative delivery in the United States, see the General Accounting Office Study, n.
Entailed: Look at the General Accounting Office Study in order to see a discussion of alternative delivery.
Contradiction: The General Accounting Office Study doesn't tell anything about alternative delivery methods.
Contradiction: The woman's hands are empty.
Contradiction: the people are walking.
Contradiction: There are no environmental limitations on train manufacturers 
Contradiction: Hikers are traveling through a riverbed.