( ( ( Common forms ) ( of Protozoa ) ) ( ( are ( animals ( known ( as ( ( ( ( ( ( ( ( the Amoeba ) , ) Paramecium ) , ) Euglena ) , ) and ) Radiolaria ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Common) (NNS forms)) (PP (IN of) (NP (NNP Protozoa)))) (VP (VBP are) (NP (NP (NNS animals)) (VP (VBN known) (PP (IN as) (NP (NP (DT the) (NNP Amoeba)) (, ,) (NP (NNP Paramecium)) (, ,) (NP (NNP Euglena)) (, ,) (CC and) (NP (NNP Radiolaria))))))) (. .)))
Common forms of Protozoa are animals known as the Amoeba, Paramecium, Euglena, and Radiolaria.
(ROOT (S (NP (NNS Amoebas) (CC and) (NNS paramecia)) (VP (VBP are) (NP (NP (NNS examples)) (PP (IN of) (NP (NN protozoa))))) (. .)))