skip this dreck , rent animal house 
(ROOT (S (S (VP (VB skip) (NP (DT this) (NN dreck)))) (, ,) (S (VP (VB rent) (NP (NN animal) (NN house))))))
(ROOT (S (S (VP (VB ) (NP (DT ) (NN )))) (, ) (S (VP (VB ) (NP (NN ) (NN ))))))