Anchor: Its frescoes are attributed to Perugino.
Entailed: Perugino is believed to have done its frescoes.
Contradiction: Its frescoes are attributed to da vinci.
Contradiction: a mountain climber is in the middle of a city
Contradiction: We should have stayed there and helped the people there because now, we started a civil war there that is brutal.
Contradiction:  A two-hour special about deep sea diving. 
Contradiction: He got a ride from a Mustang convertible.