Anchor: The trouble with these rooftops
Entailed: the problem with these rooftops.
Contradiction: The trouble with these coffee pots.
Contradiction: The sound of the tribes of Israel's horns destroyed the walls of Old Jericho and conquered Jerusalem. 
Contradiction: My parents had some serious several health problems.
Contradiction: A child sits indoors watching television during the winter.
Contradiction: The tactics at Lockheed remain similar to those it developed in the past.