Anchor: Obviously, a president's ambition, judgment, temperament, integrity, and ways of relating with other people (among other psychological qualities) bear greatly on how he will govern--at least as greatly as whatever election-year stands he stakes out on the issues of policy.
Entailed: A president's personality makes a big impact on how he runs the country.
Contradiction: A president's personality makes little impact on how he runs the country.
Contradiction: The men were all alone by the computer.
Contradiction: It is pleasant to relax in the Deer Park.
Contradiction: Here, on Patan's Durbar Square, stands the valley's greatest concentration of factories and smelters. 
Contradiction: San Pedro is one of the locations where it can be easily reached from by ferry.