Assertion: urea | /r/MadeOf | natural gas
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Urea is a synthetic product which usually is made from natural gas, and is used for commercial purposes like fertilizer, plastics and cosmetics.
text: Urea is a synthetic product which usually is made from natural gas, and is used for commercial purposes like fertilizer, plastics and cosmetics.