The best traditional retailers were also good at merchandising.
( ( The ( best ( traditional retailers ) ) ) ( ( ( were also ) ( good ( at merchandising ) ) ) . ) )
(ROOT (S (NP (DT The) (JJS best) (JJ traditional) (NNS retailers)) (VP (VBD were) (ADVP (RB also)) (ADJP (JJ good) (PP (IN at) (NP (NN merchandising))))) (. .)))
They were good at merchandising because they knew how to get into a customer's head.
( They ( ( ( were ( good ( at merchandising ) ) ) ( because ( they ( knew ( how ( to ( get ( into ( ( a ( customer 's ) ) head ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBD were) (ADJP (JJ good) (PP (IN at) (NP (NN merchandising)))) (SBAR (IN because) (S (NP (PRP they)) (VP (VBD knew) (SBAR (WHADVP (WRB how)) (S (VP (TO to) (VP (VB get) (PP (IN into) (NP (NP (DT a) (NN customer) (POS 's)) (NN head))))))))))) (. .)))