Anchor: People with costumes are gathered in a wooded area looking the same direction.
Entailed: people wear costumes
Contradiction: a dog jumps
Contradiction: The courts would get no pro bono hours of service, ever, at all. 
Contradiction: The player gets treated by the doctor.
Contradiction: If several decision makers are involved in a good case study, they should not give specific details about what types of decisions they each made.
Contradiction: Four people walk at the beach.