A Hollywood production company is hiring six people—John, Kent, Mary, Nora, Olivia, and Tom. Two of them are hired as editors, two as gaffers, and two as actors.
Each person is hired for only one job.
If Kent is hired as an editor, then both John and Mary are hired as gaffers, and if both John and Mary hired as gaffers, then Kent is hired as an editor.
If Nora is not hired as an actor, then Tom is hired as a gaffer.
If both Kent and Olivia are hired as gaffers, then which one of the following must be true?