Assertion: amazon river dolphin | /r/AtLocation | six countries in south america
Facets:
value: in an area
type: LOCATION
value: in south america
type: LOCATION
Source sentences:
text: They are present in six countries in South America: Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela, in an area covering about 7,000,000 square kilometres (2,700,000 sq mi).