Assertion: boomerang | /r/HasProperty | discovered in jaskinia obłazowa
Facets:
value: in the carpathian mountains in poland
type: LOCATION
Source sentences:
text: One boomerang that was discovered in Jaskinia Obłazowa 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.