Two, most other productive operations are easier to study and understand, since few firms have 40,000 locations and a large proportion of their workforce working outdoors.
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(ROOT (S (NP (NP (CD Two)) (, ,) (NP (ADJP (RBS most) (JJ other)) (JJ productive) (NNS operations))) (VP (VBP are) (ADJP (JJR easier) (S (VP (TO to) (VP (VB study) (CC and) (VB understand))))) (, ,) (SBAR (IN since) (S (NP (JJ few) (NNS firms)) (VP (VBP have) (NP (NP (CD 40,000) (NNS locations)) (CC and) (NP (NP (DT a) (JJ large) (NN proportion)) (PP (IN of) (NP (PRP$ their) (NN workforce) (VBG working) (NNS outdoors))))))))) (. .)))
There aren't a lot of firm that can boast 40,000 different workplace locations.
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(ROOT (S (NP (EX There)) (VP (VBP are) (RB n't) (NP (NP (DT a) (NN lot)) (PP (IN of) (NP (NN firm))) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB boast) (NP (CD 40,000) (JJ different) (NN workplace) (NNS locations)))))))) (. .)))