Assertion: sulfur | /r/HasProperty | recovered
Facets:
value: commercially
type: MANNER
value: from underground deposits
type: LOCATION
Source sentences:
text: Sulfur is recovered commercially from underground deposits using the Frasch Process – superheated water and steam are pumped underground, where they melt the sulfur, allowing it to be pumped to the surface.
text: It is recovered commercially from "salt domes" along the Gulf Coast of the USA.