Anchor: The last time Prudie checked, girlfriends could not prescribe drugs.
Entailed: Drugs could not be prescribed by girlfriends according to the last time Prudie checked.
Contradiction: The last time Prudie looked it up, girlfriends could prescribe medication.
Contradiction: Five people are not inspecting bicycles outside in a wooded area.
Contradiction: A group of individuals are participating in a riding race.
Contradiction: Three women are golfing.
Contradiction: There were multiple art trends during the 19th and 20th centuries.