Anchor: Human-rights groups argue that the current tribunals, having no police force to back them up, are too weak to be effective.
Entailed: Many human-right's groups believe that without police support tribunals are essentially powerless.
Contradiction: Tribunals are quite effective without the involvement of police.
Contradiction: There are no opinions posted to the Fan Club about Lewinsky.  
Contradiction: A man on a surfboard rides a wave
Contradiction: A man enjoying his day off.
Contradiction: The traffic and buildings are by the traveling people.