Assertion: tourmaline | /r/ObjectUse | used as raw ore
Facets:
value: for jewels
type: PURPOSE
Source sentences:
text: Tourmaline is widely produced in ten or so countries including Brazil, Soviet Union, U.S.A., etc., and is used as a raw ore for jewels.
text: Tourmaline is widely produced in ten or so countries including Brazil, Soviet Union, U.S.A., etc., and is used as a raw ore for jewels.
text: Tourmaline is widely produced in ten or so countries including Brazil, Soviet Union, U.S.A., etc., and is used as a raw ore for jewels.