( ( Plankton ( -LRB- ( ( ( phytoplankton and ) zooplankton ) -RRB- ) ) ) - )
(ROOT (NP (NP (NNP Plankton)) (PRN (-LRB- -LRB-) (NP (NN phytoplankton) (CC and) (NNS zooplankton)) (-RRB- -RRB-)) (: -)))
Plankton (phytoplankton and zooplankton) -
(ROOT (S (NP (NNP Phytoplankton)) (VP (VBP make) (NP (NP (NN food)) (PP (IN via) (NP (NN photosynthesis))))) (. .)))