Assertion: illusion | /r/CapableOf | use reflecting glass perpendicular
Facets:
value: to the theater floor
type: LOCATION
Source sentences:
text: Dircks's illusion used a reflecting glass perpendicular to the theater floor, reflecting actors directly underneath the audience, whereas Pepper tilted the glass to a 45-degree angle and placed actors lying on their sides in a pit in front of the audience.