( ( A watershed ) ( ( is ( ( the ( land area ) ) ( that ( ( drains water ) ( into ( ( a ( river ( system ( or ( other body ) ) ) ) ) ( of water ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN watershed)) (VP (VBZ is) (NP (NP (DT the) (NN land) (NN area)) (SBAR (WHNP (WDT that)) (S (VP (VBZ drains) (NP (NN water)) (PP (IN into) (NP (NP (DT a) (NN river) (NN system) (CC or) (JJ other) (NN body)) (PP (IN of) (NP (NN water)))))))))) (. .)))
A watershed is the land area that drains water into a river system or other body of water.
(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)))))))