In 1990, 73 percent of all workers in this industry were classified as working in the sewing department; 91 percent were sewing machine operators.
( ( ( ( ( In 1990 ) ( , ( ( ( 73 percent ) ( of ( ( all workers ) ( in ( this industry ) ) ) ) ) ( were ( classified ( as ( working ( in ( the ( sewing department ) ) ) ) ) ) ) ) ) ) ; ) ( ( 91 percent ) ( were ( sewing ( machine operators ) ) ) ) ) . )
(ROOT (S (S (PP (IN In) (NP (CD 1990))) (, ,) (NP (NP (CD 73) (NN percent)) (PP (IN of) (NP (NP (DT all) (NNS workers)) (PP (IN in) (NP (DT this) (NN industry)))))) (VP (VBD were) (VP (VBN classified) (PP (IN as) (S (VP (VBG working) (PP (IN in) (NP (DT the) (VBG sewing) (NN department))))))))) (: ;) (S (NP (CD 91) (NN percent)) (VP (VBD were) (VP (VBG sewing) (NP (NN machine) (NNS operators))))) (. .)))
91 percent of workers in the sewing department were sewing machine operators in 1990.
( ( ( 91 percent ) ( of ( workers ( in ( the ( sewing department ) ) ) ) ) ) ( ( were ( ( sewing ( machine operators ) ) ( in 1990 ) ) ) . ) )
(ROOT (S (NP (NP (CD 91) (NN percent)) (PP (IN of) (NP (NP (NNS workers)) (PP (IN in) (NP (DT the) (JJ sewing) (NN department)))))) (VP (VBD were) (VP (VBG sewing) (NP (NN machine) (NNS operators)) (PP (IN in) (NP (CD 1990))))) (. .)))