Assertion: trumpeter swan's egg | /r/HasProperty | plucked by matteson
Facets:
value: from the alaskan wilds
type: LOCATION
value: between 1997
type: TEMPORAL
value: between 1989
type: TEMPORAL
Source sentences:
text: Wisconsin's trumpeter swans originated from eggs plucked from the Alaskan wilds between 1989 and 1997 by Matteson and others.