( ( ( Mountain stream ) ( in Oregon ) ) . )
(ROOT (NP (NP (NNP Mountain) (NN stream)) (PP (IN in) (NP (NNP Oregon))) (. .)))
Mountain stream in Oregon.
(ROOT (S (NP (NNS Streams)) (ADVP (RB often)) (VP (VBP start) (PP (IN in) (NP (NNS mountains)))) (. .)))