At best, experience with different combinations of waist sizes and leg lengths for a given design allows a scheduler to aggregate the units to be made into groups of large and small sizes, which means marker-makers can achieve efficiencies near 90 percent for casual pants.
( ( At best ) ( , ( ( experience ( with ( ( different combinations ) ( of ( ( waist ( sizes ( and ( leg lengths ) ) ) ) ( for ( a ( given design ) ) ) ) ) ) ) ) ( ( allows ( a ( scheduler ( to ( aggregate ( ( the units ) ( to ( be ( made ( into ( ( ( groups ( of ( large ( and ( small sizes ) ) ) ) ) , ) ( which ( means ( marker-makers ( can ( achieve ( efficiencies ( near ( ( 90 percent ) ( for ( casual pants ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (RBS best)) (, ,) (NP (NP (NN experience)) (PP (IN with) (NP (NP (JJ different) (NNS combinations)) (PP (IN of) (NP (NP (JJ waist) (NNS sizes) (CC and) (NN leg) (NNS lengths)) (PP (IN for) (NP (DT a) (VBN given) (NN design)))))))) (VP (VBZ allows) (NP (DT a) (NN scheduler) (S (VP (TO to) (VP (VB aggregate) (S (NP (DT the) (NNS units)) (VP (TO to) (VP (VB be) (VP (VBN made) (PP (IN into) (NP (NP (NNS groups)) (PP (IN of) (NP (JJ large) (CC and) (JJ small) (NNS sizes))) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ means) (SBAR (S (NP (NNS marker-makers)) (VP (MD can) (VP (VB achieve) (NP (NP (NNS efficiencies)) (PP (IN near) (NP (NP (CD 90) (NN percent)) (PP (IN for) (NP (JJ casual) (NNS pants)))))))))))))))))))))))) (. .)))
Makrer-makers can only ever achieve efficiencies of 80 percent for casual pants.
( Makrer-makers ( ( ( can only ) ( ever ( achieve ( efficiencies ( of ( ( 80 percent ) ( for ( casual pants ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Makrer-makers)) (VP (MD can) (ADVP (RB only)) (VP (ADVP (RB ever)) (VB achieve) (NP (NP (NNS efficiencies)) (PP (IN of) (NP (NP (CD 80) (NN percent)) (PP (IN for) (NP (JJ casual) (NNS pants)))))))) (. .)))