( ( ( Whittaker 's ) system ) ( ( ( placed ( ( most single ) ( celled organisms ) ) ) ( into ( either ( ( ( the ( prokaryotic Monera ) ) or ) ( the ( eukaryotic Protista ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Whittaker) (POS 's)) (NN system)) (VP (VBD placed) (NP (ADJP (RBS most) (JJ single)) (JJ celled) (NNS organisms)) (PP (IN into) (NP (CC either) (NP (DT the) (JJ prokaryotic) (NN Monera)) (CC or) (NP (DT the) (JJ eukaryotic) (NN Protista))))) (. .)))
Whittaker's system placed most single celled organisms into either the prokaryotic Monera or the eukaryotic Protista.
(ROOT (S (NP (DT A) (JJ single-celled) (NN prokaryotic)) (VP (VBZ is) (NP (DT a) (NNS bacteria))) (. .)))