( ( ( WATERSHED -- ) ( ( The area ) ( of ( land ( drained ( by ( ( ( a ( single stream ) ) or ) river ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP WATERSHED)) (: --) (NP (NP (DT The) (NN area)) (PP (IN of) (NP (NP (NN land)) (VP (VBN drained) (PP (IN by) (NP (NP (DT a) (JJ single) (NN stream)) (CC or) (NP (NN river)))))))) (. .)))
WATERSHED--The area of land drained by a single stream or river.
(ROOT (S (NP (NP (DT All)) (PP (IN of) (NP (NP (DT the) (NN land)) (VP (VBN drained) (PP (IN by) (NP (DT a) (NN river) (NN system))))))) (VP (VBZ is) (VP (VBN called) (NP (NP (PRP$ its) (NN basin)) (, ,) (CC or) (NP (DT the) (`` ``) (JJ wet) ('' '') (NN term) (NN watershed)))))))