Assertion: oxygen's form | /r/Desires | further treatment
Facets:
value: in order to made reusable
type: PURPOSE
Source sentences:
text: In the US, non-potable forms of wastewater generated by humans may be referred to as grey water, which is treatable and thus easily able to be made potable again, and blackwater, which generally contains sewage and other forms of waste which require further treatment in order to be made reusable.