( ( Prokaryote ( ( A ( bacterium cell ) ) ( lacking ( ( ( a nucleus ) and ) ( other ( membrane ( bound organelles ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Prokaryote) (NP (NP (DT A) (NN bacterium) (NN cell)) (VP (VBG lacking) (NP (NP (DT a) (NN nucleus)) (CC and) (NP (JJ other) (JJ membrane) (JJ bound) (NNS organelles)))))) (. .)))
Prokaryote A bacterium cell lacking a nucleus and other membrane bound organelles.
(ROOT (S (NP (NP (JJ Prokaryotic) (NNS cells) (POS ')) (NNS organelles)) (ADVP (RB because) (RB not)) (VP (VBD membrane-bound)) (. .)))