Assertion: birch's bark | /r/HasProperty | flammable
Facets:
value: very
type: DEGREE
value: due to its oil content
type: CAUSE
Source sentences:
text: The papery, shredded bark, is very flammable due to its oil content and can be peeled off and used as a fire starter even in wet conditions.
text: As the bark is flammable, it often will burn and may girdle the tree.