Anchor: Such would be the case if the postal service requires two sortations to get the mail to the 5-digit level while the computer goes there directly.
Entailed: If the postal service requires two sortations to get the mail to the 5-digit level, this would be the case.
Contradiction: Computers have no use in the running of the postal service.
Contradiction: People are eating at a hot dog stand.
Contradiction: A person is surfing at the beach.
Contradiction: Weapons are not used for evil or harm. 
Contradiction: he looked at the reasons why the U.S. media was angry over being kicked out of Yugoslavia.