( ( ( ( ( ( ( Several ( different species ) ) ( of bacteria ) ) ( can ( cause TSS ) ) ) , ) but ) ( ( Staphylococcus aureus ) ( is ( ( the bacterium ) ( ( most people ) ( associate ( with TSS ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (JJ Several) (JJ different) (NNS species)) (PP (IN of) (NP (NNS bacteria)))) (VP (MD can) (VP (VB cause) (NP (NNP TSS))))) (, ,) (CC but) (S (NP (NNP Staphylococcus) (NNP aureus)) (VP (VBZ is) (NP (NP (DT the) (NN bacterium)) (SBAR (S (NP (JJS most) (NNS people)) (VP (VBP associate) (PP (IN with) (NP (NNP TSS))))))))) (. .)))
Several different species of bacteria can cause TSS, but Staphylococcus aureus is the bacterium most people associate with TSS.
(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))))) (. .)))