Assertion: cactus wren | /r/HasProperty | the state bird of arizona
Facets:
value: since 1931
type: TEMPORAL
Source sentences:
text: The cactus wren is the state bird of Arizona.
text: The cactus wren has been the state bird of Arizona since 1931; its presence and song are considered characteristic of southwestern deserts.
text: The Cactus Wren has been the state bird of Arizona since 1931; its presence and song are considered characteristic of southwestern deserts.