eats , meddles , argues , laughs , kibbitzes 
(ROOT (NP (NNS eats) (, ,) (NNS meddles) (, ,) (NNS argues) (, ,) (NP (NNS laughs)) (, ,) (NP (NNS kibbitzes))))
(ROOT (NP (NNS ) (, ) (NNS ) (, ) (NNS ) (, ) (NP (NNS )) (, ) (NP (NNS ))))