that slather clearasil over the blemishes of youth 
(ROOT (S (WHNP (DT that)) (VP (VB slather) (NP (NN clearasil)) (PP (IN over) (NP (NP (DT the) (NNS blemishes)) (PP (IN of) (NP (NN youth))))))))
(ROOT (S (WHNP (DT )) (VP (VB ) (NP (NN )) (PP (IN ) (NP (NP (DT ) (NNS )) (PP (IN ) (NP (NN ))))))))