Retail buyers of old grappled with this problem as they do today.
( ( ( Retail buyers ) ( of old ) ) ( ( ( grappled ( with ( this problem ) ) ) ( as ( they ( do today ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Retail) (NNS buyers)) (PP (IN of) (ADJP (JJ old)))) (VP (VBD grappled) (PP (IN with) (NP (DT this) (NN problem))) (SBAR (IN as) (S (NP (PRP they)) (VP (VBP do) (NP (NN today)))))) (. .)))
The problem is only faced by today's retail buyers.
( ( The problem ) ( ( ( is only ) ( faced ( by ( ( today 's ) ( retail buyers ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN problem)) (VP (VBZ is) (ADVP (RB only)) (VP (VBN faced) (PP (IN by) (NP (NP (NN today) (POS 's)) (JJ retail) (NNS buyers))))) (. .)))