Assertion: black walnut tree | /r/HasProperty | between 20 and 30 m
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: A black walnut tree usually is between 20 and 30 m (about 65 and 100 feet) tall and has a trunk about 60 to 90 cm (2 to 3 feet) in diameter, with a deeply furrowed, dark brown or grayish black bark.