Kmart became the first major nonfood retailer to employ them as a means of tracking inventory in the early 1980s, several years before Walton made this technology a core building block of his distribution system.
( Kmart ( ( ( became ( the ( first ( major ( nonfood retailer ) ) ) ) ) ( to ( ( ( employ them ) ( as ( ( a means ) ( of ( ( tracking inventory ) ( in ( ( ( the ( early 1980s ) ) , ) ( several years ) ) ) ) ) ) ) ) ( before ( Walton ( ( made ( this technology ) ) ( ( a ( core ( building block ) ) ) ( of ( his ( distribution system ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Kmart)) (VP (VBD became) (NP (DT the) (JJ first) (JJ major) (JJ nonfood) (NN retailer)) (S (VP (TO to) (VP (VB employ) (NP (PRP them)) (PP (IN as) (NP (NP (DT a) (NN means)) (PP (IN of) (S (VP (VBG tracking) (NP (NN inventory)) (PP (IN in) (NP (NP (DT the) (JJ early) (NNS 1980s)) (, ,) (NP (JJ several) (NNS years))))))))) (SBAR (IN before) (S (NP (NNP Walton)) (VP (VBD made) (NP (DT this) (NN technology)) (NP (NP (DT a) (JJ core) (NN building) (NN block)) (PP (IN of) (NP (PRP$ his) (NN distribution) (NN system))))))))))) (. .)))
Walton was the first major retailer to track inventory in the early 1980s using the new distribution system.
( Walton ( ( was ( the ( first ( major ( retailer ( to ( ( track inventory ) ( in ( ( the ( early 1980s ) ) ( using ( the ( new ( distribution system ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Walton)) (VP (VBD was) (NP (DT the) (JJ first) (JJ major) (NN retailer) (S (VP (TO to) (VP (VB track) (NP (NN inventory)) (PP (IN in) (NP (NP (DT the) (JJ early) (NNS 1980s)) (VP (VBG using) (NP (DT the) (JJ new) (NN distribution) (NN system)))))))))) (. .)))