Assertion: cyclone's eye | /r/HasProperty | circular
Facets:
value: in diameter
type: OTHER
value: roughly
type: DEGREE
value: normally
type: DEGREE
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.
text: The eye of a storm is a roughly circular area, typically 30–65 kilometers (19–40 miles) in diameter.
text: An open eye is an eye which can be circular, but the eyewall does not completely encircle the eye, also indicating a weakening, moisture-deprived cyclone.