Anchor: In fact, a case study where the only people interviewed were senior officials would be seen as a not-good case study, in contrast to one where the views of individuals at all levels affected was obtained.
Entailed: People at all levels should be interviewed for a case study.
Contradiction: Senior officials are the most reliable source of information for a case study.
Contradiction: Two women faced a man in the center of the circle of people.
Contradiction: The speaker can show camera footage
Contradiction: This won't help the president in his duties.
Contradiction: You people are millionaires.