Anchor: They went back and forth for some time.
Entailed: For some time they went back and forth.
Contradiction: They had all made their decision except one and were auguring with the one holdout. 
Contradiction: The cost is in canadian dollars 
Contradiction: The people were enjoying his music.
Contradiction: Variety has no idea what the snazzy partnership will produce.
Contradiction: Castles were built along Portugal's borders during the late 13th and early 14th centuries.