9 About two-thirds of the production volume of our surveyed business units did their marker-making, spreading, and cutting in a single location.
( ( ( 9 ( About two-thirds ) ) ( of ( ( the ( production volume ) ) ( of ( our ( surveyed ( business units ) ) ) ) ) ) ) ( ( ( ( did ( their marker-making ) ) , ) ( ( ( spreading , ) and ) ( cutting ( in ( a ( single location ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (CD 9)) (QP (RB About) (NNS two-thirds))) (PP (IN of) (NP (NP (DT the) (NN production) (NN volume)) (PP (IN of) (NP (PRP$ our) (VBN surveyed) (NN business) (NNS units)))))) (VP (VBD did) (NP (PRP$ their) (NN marker-making)) (, ,) (S (VP (VP (VBG spreading)) (, ,) (CC and) (VP (VBG cutting) (PP (IN in) (NP (DT a) (JJ single) (NN location))))))) (. .)))
The surveyed businesses worked in the timber industry.
( ( The ( surveyed businesses ) ) ( ( worked ( in ( the ( timber industry ) ) ) ) . ) )
(ROOT (S (NP (DT The) (VBN surveyed) (NNS businesses)) (VP (VBD worked) (PP (IN in) (NP (DT the) (NN timber) (NN industry)))) (. .)))