Assertion: bottled water's fluoride | /r/HasProperty | natural
Facets:
value: in the water
type: LOCATION
Source sentences:
text: Some fluoride is natural in the water, but we boost it up a little more to keep it consistent and beneficial.
text: Fluoride is a natural mineral and a form of the element fluorine (chemical symbol F), the 13th most abundant element in the earth's crust.