Anchor: (As did most quiz participants, with disturbing vividness.)
Entailed: Most quiz participants did that vividly.
Contradiction: No one who took the quiz was able to do it vividly.
Contradiction: Two men are zip lining down a mountain.
Contradiction: Boys are playing
Contradiction: A woman is painting a wall.
Contradiction: There's a project underway to construct a command center I believe.