Many manufacturers do not explicitly track and use information like weekly demand variation for different SKUs.
( ( Many manufacturers ) ( ( ( ( do not ) explicitly ) ( ( ( ( track and ) use ) ( information ( like ( weekly ( demand variation ) ) ) ) ) ( for ( different SKUs ) ) ) ) . ) )
(ROOT (S (NP (JJ Many) (NNS manufacturers)) (VP (VBP do) (RB not) (ADVP (RB explicitly)) (VP (VB track) (CC and) (VB use) (NP (NP (NN information)) (PP (IN like) (NP (JJ weekly) (NN demand) (NN variation)))) (PP (IN for) (NP (JJ different) (NNS SKUs))))) (. .)))
Manufacturers use different SKUs in their systems.
( Manufacturers ( ( use ( ( different SKUs ) ( in ( their systems ) ) ) ) . ) )
(ROOT (S (NP (NNP Manufacturers)) (VP (VBP use) (NP (NP (JJ different) (NNS SKUs)) (PP (IN in) (NP (PRP$ their) (NNS systems))))) (. .)))