Assertion: turkey | /r/HasProperty | leading producer of boron
Facets:
Source sentences:
text: Turkey was a leading producer of boron, and was known for such industrial minerals as barite, celestite (strontium), clays, emery, feldspar, limestone, magnesite, marble, perlite, pumice, and trona (soda ash).
text: The sheep wool is used mainly for blankets and carpets, and Turkey is a leading producer of mohair.
text: Turkey is also the main pulse producer in the Middle East and one of the leading producers in the world.