( ( 22 However ) ( , ( ( the ( eukaryotic protists ) ) ( ( ( ( ( ( ( do not ) ( form ( a group ) ) ) , ) but ) rather ) ( are ( comprised ( of ( ( many ( phylogenetically ( disparate groups ) ) ) ( -LRB- ( ( including ( ( ( ( ( ( slime molds ) , ) ( ( multiple groups ) ( of algae ) ) ) , ) and ) ( ( many ( distinct groups ) ) ( of protozoa ) ) ) ) -RRB- ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (NP (CD 22)) (ADVP (RB However))) (, ,) (NP (DT the) (JJ eukaryotic) (NNS protists)) (VP (VP (VBP do) (RB not) (VP (VB form) (NP (DT a) (NN group)))) (, ,) (CC but) (ADVP (RB rather)) (VP (VBP are) (VP (VBN comprised) (PP (IN of) (NP (NP (JJ many) (JJ phylogenetically) (JJ disparate) (NNS groups)) (PRN (-LRB- -LRB-) (PP (VBG including) (NP (NP (NN slime) (NNS molds)) (, ,) (NP (NP (JJ multiple) (NNS groups)) (PP (IN of) (NP (NN algae)))) (, ,) (CC and) (NP (NP (JJ many) (JJ distinct) (NNS groups)) (PP (IN of) (NP (NN protozoa)))))) (-RRB- -RRB-))))))) (. .)))
22 However, the eukaryotic protists do not form a group, but rather are comprised of many phylogenetically disparate groups (including slime molds, multiple groups of algae, and many distinct groups of protozoa).
(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)))))) (. .)))