( ( ( ( ( ( A spirochete ) , ) or ) ( ( ( spiral bacterium ) , ) ( called ( Borrelia burgodrferi ) ) ) ) , ) ( ( is ( ( the cause ) ( of ( lyme disease ) ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN spirochete)) (, ,) (CC or) (NP (NP (NN spiral) (NN bacterium)) (, ,) (VP (VBN called) (NP (NNP Borrelia) (NNS burgodrferi)))) (, ,)) (VP (VBZ is) (NP (NP (DT the) (NN cause)) (PP (IN of) (NP (JJ lyme) (NN disease))))) (. .)))
A spirochete, or spiral bacterium, called Borrelia burgodrferi , is the cause of lyme disease.
(ROOT (S (NP (JJ Lyme) (NN disease)) (VP (VBZ is) (VP (VBN caused) (PP (IN by) (NP (NNS bacteria))))) (. .)))
Lyme disease is caused by bacteria.