( ( The idea ) ( ( was ( that ( ( the plague ) ( came ( from ( ( `` ( venemous ( atoms '' ) ) ) ( which ( ( infected ( salubrious air ) ) ( making ( it ( `` ( miasmatic '' ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN idea)) (VP (VBD was) (SBAR (IN that) (S (NP (DT the) (NN plague)) (VP (VBD came) (PP (IN from) (NP (NP (`` ``) (JJ venemous) (NNS atoms) ('' '')) (SBAR (WHNP (WDT which)) (S (VP (VBD infected) (NP (JJ salubrious) (NN air)) (S (VP (VBG making) (S (NP (PRP it)) (`` ``) (ADJP (JJ miasmatic)) ('' ''))))))))))))) (. .)))
The idea was that the plague came from "venemous atoms" which infected salubrious air making it "miasmatic".
(ROOT (S (NP (NNP Air)) (VP (VBZ is) (VP (VBN made) (PP (IN of) (NP (NNS atoms))))) (. .)))