( ( Watershed ( ( A ( land area ) ) ( that ( drains ( to ( a ( particular ( river system ) ) ) ) ) ) ) ) ; )
(ROOT (S (VP (VB Watershed) (NP (NP (DT A) (NN land) (NN area)) (SBAR (WHNP (WDT that)) (S (VP (VBZ drains) (PP (TO to) (NP (DT a) (JJ particular) (NN river) (NN system)))))))) (: ;)))
Watershed A land area that drains to a particular river system;
(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)))))))