Clippinger continues: "All problems can be classified by the amount of time needed to solve them in proportion to the size of the instance.
(the amount of time; needed; ) (Clippinger; continues; All problems can be classified by the amount of time) Context(Clippinger continues,List([0, 20))):(All problems; can be classified; by the amount of time)
Clippinger continues,List([0, 20))
the amount of time Clippinger All problems
needed continues can be classified
All problems can be classified by the amount of time
by the amount of time