( ( ( The origins ) ( of ( the ( various ( multicelled ( groups proba ) ) ) ) ) ) ( - ( ( ( ( ( bly ( lie ( among ( several ( different ( protist ancestors ) ) ) ) ) ) , ) and ) ( ( some ( protist groups ) ) ( ( are probably ) ( ( ( no ( more ( than unicel ) ) ) - ) ( ( lular members ) ( of ( lineages ( that ( spawned ( multicellular taxa ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (FRAG (NP (NP (DT The) (NNS origins)) (PP (IN of) (NP (DT the) (JJ various) (JJ multicelled) (NNS groups) (NN proba)))) (: -) (S (S (NP (NN bly)) (VP (VBP lie) (PP (IN among) (NP (JJ several) (JJ different) (NN protist) (NNS ancestors))))) (, ,) (CC and) (S (NP (DT some) (NN protist) (NNS groups)) (VP (VBP are) (ADVP (RB probably)) (NP (NP (DT no) (QP (JJR more) (IN than) (CD unicel))) (: -) (NP (NP (NN lular) (NNS members)) (PP (IN of) (NP (NP (NNS lineages)) (SBAR (WHNP (WDT that)) (S (VP (VBD spawned) (NP (NN multicellular) (NN taxa)))))))))))) (. .)))
The origins of the various multicelled groups proba- bly lie among several different protist ancestors, and some protist groups are probably no more than unicel- lular members of lineages that spawned multicellular taxa.
(ROOT (S (NP (JJ Multiple) (NN fission)) (VP (VBZ is) (ADVP (RBR more) (RB often)) (VP (VBN observed) (PP (IN among) (NP (NNS protists))))) (. .)))