lots of boring talking heads , etc . 
(ROOT (NP (NP (NP (NNS lots)) (PP (IN of) (NP (JJ boring) (NN talking) (NNS heads)))) (, ,) (NP (FW etc)) (. .)))
(ROOT (NP (NP (NP (NNS )) (PP (IN ) (NP (JJ ) (NN ) (NNS )))) (, ) (NP (FW )) (. )))