Anchor: Since a number of offices have been closed in the last 20 years, this estimate of 12,000 may not be current.
Entailed: Many offices were closed over the past 20 years.
Contradiction: No offices have been closed in the past 20 years.
Contradiction: girl plays piano
Contradiction: These days much of one's private life is not safe.
Contradiction: Several people are jumping into the fountain.
Contradiction: He is actually doing.