( ( ( Brain and ) ( heart ( infusion ( blood agar ) ) ) ) ( ( is ( ( ( cultured anaerobically ) or ) ( enriched ( with ( carbon dioxide ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Brain)) (CC and) (NP (NN heart) (NN infusion) (NN blood) (NN agar))) (VP (VBZ is) (VP (VP (VBN cultured) (ADVP (RB anaerobically))) (CC or) (VP (VBN enriched) (PP (IN with) (NP (NN carbon) (NN dioxide)))))) (. .)))
Brain and heart infusion blood agar is cultured anaerobically or enriched with carbon dioxide.
(ROOT (S (NP (DT The) (NN brain)) (VP (VBP stem) (S (NP (NP (NN monitor)) (PRN (-LRB- -LRB-) (PRP s) (-RRB- -RRB-))) (NP (NP (DT the) (NN level)) (PP (IN of) (NP (NP (NN carbon) (NN dioxide)) (PP (IN in) (NP (DT the) (NN blood)))))))) (. .)))