Assertion: gray squirrel | /r/AtLocation | europe
Facets:
value: from america
type: TRANSITIVE-OBJECT
value: during the early 1900s
type: TEMPORAL
Source sentences:
text: Eastern gray squirrels are native to eastern North America but were introduced to Europe during the early 1900s when they were accidentally freed from the London Zoo.
text: Grey squirrels have been introduced from America into Europe (most notably, Great Britain).