Anchor: Firemen are standing outside of glass windows talking to one another.
Entailed: People are talking.
Contradiction: People are in line at the unemployment office.
Contradiction: Drew's horse was black as midnight.
Contradiction: An auditor may choose to apply performance audit standards in chapters 7 and 8 to the objectives in paragraph 2.6 instead of following the attestation standards in chapter 6 based on the needs of the user along with the auditor's qualifications. 
Contradiction: a child is break dancing
Contradiction: The woman is playing a violin.