( ( Respiratory rate ) ( is ( ( 40-150 breaths ) ( per minute ) ) ) )
(ROOT (S (NP (JJ Respiratory) (NN rate)) (VP (VBZ is) (NP (NP (CD 40-150) (NNS breaths)) (PP (IN per) (NP (NN minute)))))))
Respiratory rate is 40-150 breaths per minute
(ROOT (S (NP (NP (DT The) (JJ normal) (NN respiratory) (NN rate)) (PP (IN per) (NP (NP (NN minute)) (PP (IN in) (NP (JJ adult) (NNS humans)))))) (VP (VBZ is) (NP (CD 12-18) (NNS breaths))) (. .)))