( ( Santa Rosa ) ( ( ( ( ( is often ) ( the ( starting point ) ) ) ( for ( tours ( to ( the mountains ) ) ) ) ) nearby ) . ) )
(ROOT (S (NP (NNP Santa) (NNP Rosa)) (VP (VBZ is) (ADVP (RB often)) (NP (DT the) (JJ starting) (NN point)) (PP (IN for) (NP (NP (NNS tours)) (PP (TO to) (NP (DT the) (NNS mountains))))) (ADVP (RB nearby))) (. .)))
Santa Rosa is often the starting point for tours to the mountains nearby.
(ROOT (S (NP (NNS Streams)) (ADVP (RB often)) (VP (VBP start) (PP (IN in) (NP (NNS mountains)))) (. .)))