 Most menu prices include taxes and a service charge, but it's customary to leave a tip if you were served satisfactorily.
( ( ( ( ( ( Most ( menu prices ) ) ( include ( ( taxes and ) ( a ( service charge ) ) ) ) ) , ) but ) ( it ( 's ( customary ( to ( ( leave ( a tip ) ) ( if ( you ( were ( served satisfactorily ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (JJS Most) (NN menu) (NNS prices)) (VP (VBP include) (NP (NP (NNS taxes)) (CC and) (NP (DT a) (NN service) (NN charge))))) (, ,) (CC but) (S (NP (PRP it)) (VP (VBZ 's) (ADJP (JJ customary) (S (VP (TO to) (VP (VB leave) (NP (DT a) (NN tip)) (SBAR (IN if) (S (NP (PRP you)) (VP (VBD were) (VP (VBN served) (ADVP (RB satisfactorily)))))))))))) (. .)))
Most customers will tip in addition to the tax on the menus.
( ( Most customers ) ( ( will ( ( tip ( in addition ) ) ( to ( ( the tax ) ( on ( the menus ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJS Most) (NNS customers)) (VP (MD will) (VP (VB tip) (PP (IN in) (NP (NN addition))) (PP (TO to) (NP (NP (DT the) (NN tax)) (PP (IN on) (NP (DT the) (NNS menus))))))) (. .)))