Assertion: liniment's oil | /r/HasProperty | produced
Facets:
value: from some species of birch
type: OTHER
Source sentences:
text: The plasters will stay on for a few days even with showering, it is until your body’s natural oils are produced will they come loose.
text: Oil of wintergreen is also manufactured from some species of birch, but these deciduous trees are not called wintergreens.