Assertion: conveyor belt | /r/CapableOf | feature a welded steel frame
Facets:
value: outside of the trough
type: LOCATION
value: for rigidity
type: PURPOSE
Source sentences:
text: The trough may or may not be a structural element of the dirt conveyor; most conveyors will feature a welded steel frame outside of the trough for rigidity, and the pulleys that comprise the conveyor system will be mounted to this frame.