Assertion: track's gauge | /r/CapableOf | vary in 1,420 mm
Facets:
value: for operation
type: PURPOSE
value: from 4 ft 8
type: OTHER
Source sentences:
text: For example, U.S. federal safety standards allow standard gauge to vary from 4 ft 8 in (1,420 mm) to 4 ft 9 1⁄ 2 in (1,460 mm) for operation up to 60 mph (97 km/h).