Assertion: giant sequoia's wood | /r/HasProperty | resinous
Facets:
Source sentences:
text: Other interesting issues: The bark of the giant sequoia is nearly resistant to fire - this is because it is non-resinous, and the sap contains a chemical called tannic acid, which is used in fire extinguishers (Peattie 1953); the heartwood, or interior wood, is also non-resinous and has tannic acid, and doesn't burn easily (Peterson 1975).