( ( ( ( ( ( The ( first two ) ) ( of these ) ) , ) ( ( Bacteria and ) Archaea ) ) , ) ( ( are ( ( prokaryotes , ) ( that ( ( is , ) ( cells ( without nuclei ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (DT The) (JJ first) (CD two)) (PP (IN of) (NP (DT these)))) (, ,) (NP (NP (NNS Bacteria)) (CC and) (NP (NNP Archaea))) (, ,)) (VP (VBP are) (NP (NP (NNS prokaryotes)) (, ,) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (, ,) (NP (NP (NNS cells)) (PP (IN without) (NP (NNS nuclei))))))))) (. .)))
The first two of these, Bacteria and Archaea, are prokaryotes, that is, cells without nuclei.
(ROOT (S (NP (NNS Bacteria) (CC and) (NNS archaea)) (VP (VBP are) (NP (NP (NNS examples)) (PP (IN of) (NP (NNS prokaryotes))))) (. .)))