Assertion: frog | /r/HasProperty | invasive species
Facets:
value: in many
type: OTHER
value: in some areas
type: LOCATION
Source sentences:
text: This frog is native to southern and eastern parts of the United States and Canada, but has been widely introduced across other parts of North, Central and South America, Western Europe, and parts of Asia, and in some areas is regarded as a pest and an invasive species.
text: In many of these countries, they are now regarded both as pests and invasive species, and scientists are looking for a biological method to control them.