( ( For example ) ( , ( ( one category ) ( ( is ( ( ( the ( Air-Sea Interface ) ) , ) ( which ( ( contains ( oceanic ( and ( atmospheric data ) ) ) ) ( at ( the ( ocean surface ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (NN example))) (, ,) (NP (CD one) (NN category)) (VP (VBZ is) (NP (NP (DT the) (NNP Air-Sea) (NNP Interface)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ contains) (NP (JJ oceanic) (CC and) (JJ atmospheric) (NNS data)) (PP (IN at) (NP (DT the) (NN ocean) (NN surface)))))))) (. .)))
For example, one category is the Air-Sea Interface, which contains oceanic and atmospheric data at the ocean surface.
(ROOT (NP (NP (NNP Ocean) (NNS waves) (NN travel)) (PRN (-LRB- -LRB-) (PRP s) (-RRB- -RRB-)) (PP (IN at) (NP (NP (DT the) (NN interface)) (PP (IN between) (NP (NP (DT the) (NN sea) (NN surface)) (CC and) (NP (DT the) (NN atmosphere)))))) (. .)))