They need real-time information regarding what goods their plants have in finished, work-in-process, and material inventories.
( They ( ( need ( ( real-time information ) ( regarding ( what ( ( goods ( their plants ) ) ( have ( in ( finished ( , ( work-in-process ( , ( and ( material inventories ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP need) (NP (NP (JJ real-time) (NN information)) (PP (VBG regarding) (SBAR (WHNP (WP what)) (S (NP (NP (NNS goods)) (NP (PRP$ their) (NNS plants))) (VP (VBP have) (VP (PP (IN in) (NP (NNS finished) (, ,) (NNS work-in-process) (, ,) (CC and) (NN material) (NNS inventories)))))))))) (. .)))
The plants don't need inventory information in real-time.
( ( The plants ) ( ( ( do n't ) ( ( need ( inventory information ) ) ( in real-time ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS plants)) (VP (VBP do) (RB n't) (VP (VB need) (NP (NN inventory) (NN information)) (PP (IN in) (NP (NNP real-time))))) (. .)))