( ( In ( the ( United States ) ) ) ( , ( ( ( numerous ( physiological races ) ) ( of ( the bacterium ) ) ) ( ( are ( ( known , ) ( ( most ( of which ) ) ( have ( been ( found ( in Ohio ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (DT the) (NNP United) (NNPS States))) (, ,) (NP (NP (JJ numerous) (JJ physiological) (NNS races)) (PP (IN of) (NP (DT the) (NN bacterium)))) (VP (VBP are) (VP (VBN known) (, ,) (SBAR (WHNP (JJS most) (WHPP (IN of) (WHNP (WDT which)))) (S (VP (VBP have) (VP (VBN been) (VP (VBN found) (PP (IN in) (NP (NNP Ohio)))))))))) (. .)))
In the United States, numerous physiological races of the bacterium are known, most of which have been found in Ohio.
(ROOT (S (NP (NNS Bacteria)) (VP (VBP are) (NP (NP (DT the) (RBS most) (JJ numerous) (NNS species)) (PP (IN on) (NP (DT the) (NN planet))))) (. .)))