( ( ( ( ( ( ( ( Animals , ) plants ) , ) fungi ) , ) and ) protists ) ( ( are eukaryotes ) . ) )
(ROOT (S (NP (NP (NNS Animals)) (, ,) (NP (NNS plants)) (, ,) (NP (NNS fungi)) (, ,) (CC and) (NP (NNS protists))) (VP (VBP are) (ADJP (JJ eukaryotes))) (. .)))
Animals , plants, fungi, and protists are eukaryotes.
(ROOT (S (NP (JJ Many) (NNS scientists)) (VP (VBP think) (SBAR (S (NP (NNS protists)) (VP (VBP are) (NP (DT the) (JJS oldest) (NNS eukaryotes)))))) (. .)))