Assertion: fluoride's water | /r/MadeOf | 1 ppm or more of fluorine
Facets:
Source sentences:
text: The sources of fluorine intoxication are drinking water containing 1 ppm or more of fluorine, fluorine compounds used as insecticidal sprays for fruits and vegetables (cryolite and barium fluosilicate) and the mining and conversion of phosphate rock to superphosphate, which is used as fertilizer.