"The Obscuring_medium is the medium through which the Phenomenon makes itself perceivable to the Perceiver_passive. This is similar to the Direction, but occurs in the opposite direction and implies a movement of the Phenomenon. My mother heard the scream through the attic window."@en . "13086"^^ . . "Obscuring_medium" . "2008-10-15T10:34:45+02:00"^^ . . . . .