( Prokaryotes ( ( are ( organisms ( with ( cells ( that ( have ( ( ( no nucleus ) or ) ( membrane-enclosed organelles ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Prokaryotes)) (VP (VBP are) (NP (NP (NNS organisms)) (PP (IN with) (NP (NP (NNS cells)) (SBAR (WHNP (WDT that)) (S (VP (VBP have) (NP (NP (DT no) (NN nucleus)) (CC or) (NP (JJ membrane-enclosed) (NNS organelles)))))))))) (. .)))
Prokaryotes are organisms with cells that have no nucleus or membrane-enclosed organelles.
(ROOT (S (NP (NNS Prokaryotes)) (VP (VBP are) (NP (NN unicellular) (NNS organisms)) (SBAR (IN that) (S (NP (NN lack) (NNS organelles)) (VP (VBN surrounded) (PP (IN by) (NP (NNS membranes))))))) (. .)))
Prokaryotes are unicellular organisms that lack organelles surrounded by membranes.