Assertion: optical turnstile | /r/CapableOf | control access
Facets:
value: to a building
type: TRANSITIVE-OBJECT
value: to secure
type: PURPOSE
Source sentences:
text: Optical turnstiles are physical security devices that control access to a building or secure area using infrared sensors to detect people and objects.
text: An optical turnstile is an access controlling device designed to restrict or control access to a building or secure area.