Only after a common convention for bar codes had been established and in use for several years did retailers turn to such systems to transmit and receive data from suppliers.
( Only ( ( after ( ( a ( common convention ) ) ( for bar ) ) ) ( codes ( ( ( ( had ( been established ) ) and ) ( ( in ( use ( for ( several years ) ) ) ) ( ( ( did ( retailers turn ) ) ( to ( such systems ) ) ) ( to ( ( ( ( transmit and ) receive ) data ) ( from suppliers ) ) ) ) ) ) . ) ) ) )
(ROOT (S (RB Only) (PP (IN after) (NP (NP (DT a) (JJ common) (NN convention)) (PP (IN for) (NP (NN bar))))) (NP (NNS codes)) (VP (VP (VBD had) (VP (VBN been) (VP (VBN established)))) (CC and) (VP (PP (IN in) (NP (NP (NN use)) (PP (IN for) (NP (JJ several) (NNS years))))) (VBD did) (NP (NNS retailers) (NN turn)) (PP (TO to) (NP (JJ such) (NNS systems))) (S (VP (TO to) (VP (VB transmit) (CC and) (VB receive) (NP (NNS data)) (PP (IN from) (NP (NNS suppliers)))))))) (. .)))
These systems allowed retailers to receive new deliveries more quickly.
( ( These systems ) ( ( ( allowed retailers ) ( to ( ( receive ( new deliveries ) ) ( more quickly ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS systems)) (VP (VBD allowed) (NP (NNS retailers)) (S (VP (TO to) (VP (VB receive) (NP (JJ new) (NNS deliveries)) (ADVP (RBR more) (RB quickly)))))) (. .)))