Assertion: magnolia's root system | /r/CapableOf | leave free space of 3 to 5 inches
Facets:
value: around the trunk
type: LOCATION
value: for a free air access
type: PURPOSE
Source sentences:
text: Magnolia benefits from good mulching: 2 to 4 inches should be spread on surface over the root system leaving free space of 3 to 5 inches around the trunk for a free air access (otherwise the trunk may rot).