Anchor: The construction crew has brought in a crane to assist in erecting ventilation shaft.
Entailed: The crew brought in a crane.
Contradiction: The crew needed to demolish a building.
Contradiction: Stevenson does not have any fans.
Contradiction: Two men are outside
Contradiction: To increase the risk that needs or expectations of those involved is misinterpreted, auditors are uncommunicative. 
Contradiction: Some campaigns are designed for the purpose of their receipt.