( ( ( ( ( ( Bacteria and ) Archaea ) , ) ( which ( are prokaryotes ) ) ) , ) ( ( ( ( are ( ( single-celled organisms ) ( of ( quite ( a ( different type ) ) ) ) ) ) and ) ( ( do not ) ( have nuclei ) ) ) . ) )
(ROOT (S (NP (NP (NNP Bacteria) (CC and) (NNP Archaea)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (ADJP (JJ prokaryotes))))) (, ,)) (VP (VP (VBP are) (NP (NP (JJ single-celled) (NNS organisms)) (PP (IN of) (NP (PDT quite) (DT a) (JJ different) (NN type))))) (CC and) (VP (VBP do) (RB not) (VP (VB have) (NP (NNS nuclei))))) (. .)))
Bacteria and Archaea, which are prokaryotes, are single-celled organisms of quite a different type and do not have nuclei.
(ROOT (S (NP (JJ Single-celled) (NNS organisms)) (VP (VBP are) (ADJP (JJ prokaryotes))) (. .)))