Assertion: dodo's extinction | /r/HasProperty | natural
Facets:
value: most often
type: DEGREE
value: to some extent
type: DEGREE
Source sentences:
text: To some extent, extinction is natural.
text: Extinction is most often a natural process and almost all species that have ever existed are now extinct.
text: Extinction is a natural part of evolution and happens for many reasons, but birders can be part of responsible environmental stewardship and take steps to minimize the risk of more bird species going unnecessarily extinct.