a while , as do joan and philip 's repetitive arguments , schemes and treachery 
(ROOT (FRAG (NP (DT a) (NN while)) (, ,) (SBAR (IN as) (SINV (VB do) (NP (NP (NNP joan) (CC and) (NNP philip) (POS 's)) (JJ repetitive) (NNS arguments) (, ,) (NNS schemes) (CC and) (NN treachery))))))
(ROOT (FRAG (NP (DT ) (NN )) (, ) (SBAR (IN ) (SINV (VB ) (NP (NP (NNP ) (CC ) (NNP ) (POS )) (JJ ) (NNS ) (, ) (NNS ) (CC ) (NN ))))))