is an impressive achievement in spite of a river of sadness that pours into every frame . 
(ROOT (S (VP (VBZ is) (NP (DT an) (JJ impressive) (NN achievement)) (PP (IN in) (NP (NP (NN spite)) (PP (IN of) (NP (NP (NP (DT a) (NN river)) (PP (IN of) (NP (NN sadness)))) (SBAR (WHNP (WDT that)) (S (VP (VBZ pours) (PP (IN into) (NP (DT every) (NN frame))))))))))) (. .)))
(ROOT (S (VP (VBZ ) (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NP (NN )) (PP (IN ) (NP (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN )))) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (PP (IN ) (NP (DT ) (NN ))))))))))) (. )))