( ( ( 90 % ) ( of ( the ocean ) ) ) ( ( ( lies ( in ( the ( bathypelagic ( ( -LRB- ( aphotic -RRB- ) ) zone ) ) ) ) ) ( into ( which ( ( no light ) penetrates ) ) ) ) . ) )
(ROOT (S (NP (NP (CD 90) (NN %)) (PP (IN of) (NP (DT the) (NN ocean)))) (VP (VBZ lies) (PP (IN in) (NP (DT the) (JJ bathypelagic) (PRN (-LRB- -LRB-) (ADJP (JJ aphotic)) (-RRB- -RRB-)) (NN zone))) (PP (IN into) (SBAR (WHNP (WDT which)) (S (NP (DT no) (NN light)) (VP (VBZ penetrates)))))) (. .)))
90% of the ocean lies in the bathypelagic (aphotic) zone into which no light penetrates.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (DT the) (JJ lightless) (NN part)) (PP (IN of) (NP (DT the) (NN ocean) (JJ aphotic) (NN zone))))) (. .)))