Assertion: boomerang | /r/HasProperty | discovered in the carpathian mountains
Facets:
value: in poland
type: LOCATION
Source sentences:
text: One boomerang that was discovered in Obłazowa Cave in the Carpathian Mountains in Poland was made of mammoth's tusk and is believed, based on AMS dating of objects found with it, to be about 30,000 years old.