Assertion: opal | /r/HasProperty | birthstone
Facets:
value: for october
type: TEMPORAL
value: for people
type: TRANSITIVE-OBJECT
value: for those
type: TRANSITIVE-OBJECT
Source sentences:
text: Additionally, opal is a birthstone for those who are born in October.
text: It is the birthstone for the month of October.
text: Opal is considered the birthstone for people born in October.
text: Opals are the birthstones for October.