( ( Within ( ( the ( plant cells ) ) ( -LRB- ( usually ( ( leaf cells ) -RRB- ) ) ) ) ) ( , ( ( the cytoplasm ) ( ( contains ( organelles ( ( called chloroplasts ) ( where ( photosynthesis ( takes place ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Within) (NP (NP (DT the) (NN plant) (NNS cells)) (PRN (-LRB- -LRB-) (ADVP (RB usually)) (NP (NN leaf) (NNS cells)) (-RRB- -RRB-)))) (, ,) (NP (DT the) (NN cytoplasm)) (VP (VBZ contains) (SBAR (S (NP (NNS organelles)) (VP (VBD called) (NP (NNS chloroplasts)) (SBAR (WHADVP (WRB where)) (S (NP (NN photosynthesis)) (VP (VBZ takes) (NP (NN place))))))))) (. .)))
Within the plant cells (usually leaf cells), the cytoplasm contains organelles called chloroplasts where photosynthesis takes place.
(ROOT (S (NP (NNS Photosynthesis)) (VP (VBZ occurs) (PP (IN in) (NP (DT the) (NN chloroplast)))) (. .)))
Photosynthesis occurs in the chloroplast.