Anchor: A workman is drilling into a wooden pole.
Entailed: A workman using a drill.
Contradiction: A construction worker drives a crane.
Contradiction: A woman drinking coffee at home.
Contradiction: The crowd is watching an independent band perform.
Contradiction: We should help out in other places when we can. 
Contradiction: The brief outage is necessary to perform hardware changes and proliferate these changes throughout the network.