Assertion: fluoride | /r/AtLocation | area
Facets:
value: naturally
type: MANNER
Source sentences:
text: Fluoride is naturally occurring in some areas, leading to high levels in certain water supplies “naturally.
text: Fluoride is naturally occurring in some areas, leading to high levels in certain water supplies
text: Fluoride is found naturally occurring in some areas and can lead to naturally high fluoride levels in some water supplies.