( ( ( ( ( Archaea ( evolved ( many ( cell sizes ) ) ) ) , ) but ) ( all ( are ( relatively small ) ) ) ) . )
(ROOT (S (S (NP (NNP Archaea)) (VP (VBD evolved) (NP (JJ many) (NN cell) (NNS sizes)))) (, ,) (CC but) (S (NP (DT all)) (VP (VBP are) (ADJP (RB relatively) (JJ small)))) (. .)))
Archaea evolved many cell sizes, but all are relatively small.
(ROOT (S (NP (DT All) (NNS cells)) (VP (VBP have) (NP (NP (DT the) (JJ small) (NN size)) (PP (IN in) (NP (JJ common))))) (. .)))