( ( ( Headwaters - ) ( Place ( where ( ( streams start ) ( -LRB- ( ( often ( in ( the mountains ) ) ) -RRB- ) ) ) ) ) ) . )
(ROOT (X (NP (NNS Headwaters)) (: -) (FRAG (VP (VB Place) (SBAR (WHADVP (WRB where)) (S (VP (VBZ streams) (NP (NN start)) (PRN (-LRB- -LRB-) (PP (ADVP (RB often)) (IN in) (NP (DT the) (NNS mountains))) (-RRB- -RRB-))))))) (. .)))
Headwaters-  Place where streams start (often in the mountains).
(ROOT (S (NP (NNS Streams)) (ADVP (RB often)) (VP (VBP start) (PP (IN in) (NP (NNS mountains)))) (. .)))