Assertion: boomerang's shape | /r/HasProperty | representative of region
Facets:
value: as with bo-shuriken
type: OTHER
value: usually
type: TEMPORAL
Source sentences:
text: As with bo-shuriken, the various shapes of hira-shuriken were usually representative of a particular school (ryū) or region that preferred the use of such shapes, and it is therefore possible to identify the school by the type of blade used.