( This ( ( ( ( ( ( is mostly ) ( within ( the ( photic zone ) ) ) ) , ) but ) ( includes ( ( ( ( parts ( of ( the ( aphotic zone ) ) ) ) ( where ( ( some plants ) ( will ( migrate seasonally ) ) ) ) ) or ) daily ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VP (VBZ is) (ADVP (RB mostly)) (PP (IN within) (NP (DT the) (JJ photic) (NN zone)))) (, ,) (CC but) (VP (VBZ includes) (NP (NP (NP (NNS parts)) (PP (IN of) (NP (DT the) (JJ aphotic) (NN zone))) (SBAR (WHADVP (WRB where)) (S (NP (DT some) (NNS plants)) (VP (MD will) (VP (VB migrate) (ADVP (RB seasonally))))))) (CC or) (ADVP (RB daily))))) (. .)))
This is mostly within the photic zone, but includes parts of the aphotic zone where some plants will migrate seasonally or daily.
(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))))) (. .)))