how can you charge money for this ? ' 
(ROOT (SBARQ (WHADVP (WRB how)) (SQ (MD can) (NP (PRP you)) (VP (VB charge) (NP (NN money)) (PP (IN for) (NP (DT this))))) (. ?) ('' ')))
(ROOT (SBARQ (WHADVP (WRB )) (SQ (MD ) (NP (PRP )) (VP (VB ) (NP (NN )) (PP (IN ) (NP (DT ))))) (. ) ('' )))