Assertion: petroleum refining | /r/Desires | simple distillation process
Facets:
value: relatively
type: DEGREE
Source sentences:
text: Oil refining of the day—and into the first years of the 20th century—relied on a relatively simple distillation process that separated crude oil into portions, called fractions, of different hydrocarbon compounds (molecules consisting of varying arrangements of carbon and hydrogen atoms) with different boiling points.