Anchor: Because many different packages are available, and because more than one can be used, auditors should determine what models, if any, are used in their agencies.
Entailed: Auditors have the option of choosing a model to use.
Contradiction: Only a single package is available for use.
Contradiction: This will succeed. 
Contradiction: The man was at a desk.
Contradiction: Organizational divisions cannot be counted as a cost object.
Contradiction: It was cold.