Assertion: cyclone's eye | /r/HasProperty | 30–65 km
Facets:
value: typically
type: DEGREE
value: in diameter
type: OTHER
Source sentences:
text: The eye is normally circular and is typically 30–65 km (19–40 mi) in diameter, though eyes as small as 3 km (1.9 mi) and as large as 370 km (230 mi) have been observed.