Anchor: Last week we purged our delivery lists of people who hadn't subscribed.
Entailed: We removed all those people who had yet to subscribe.
Contradiction: We kept everyone on the list even though many hadn't signed up.
Contradiction: The Peace Corps pay an excellent hourly wage.
Contradiction: Most of the population resided in Georgetown, the island capital. 
Contradiction: The girl is on the plane.
Contradiction: Four is good.