Assertion: australian opal | /r/HasProperty | cited
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Australian opal has often been cited as accounting for 95–97% of the world's supply of precious opal, with the state of South Australia accounting for 80% of the world's supply.
text: Australian opal has often been cited as accounting for 95–97% of the world's supply of precious opal, with the state of South Australia accounting for 80% of the world's supply.
text: Australian opal has often been cited as accounting for 95-97% of the world’s supply of precious opal, with the state of South Australia accounting for 80% of the world’s supply.