( ( ( The ( normal ( breathing rate ) ) ) ( of ( a dog ) ) ) ( ( is ( ( ( ( ( between 12 ) to ) 20 ) times ) ( per minute ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ normal) (NN breathing) (NN rate)) (PP (IN of) (NP (DT a) (NN dog)))) (VP (VBZ is) (NP (NP (QP (IN between) (CD 12) (TO to) (CD 20) (NNS times))) (PP (IN per) (NP (NN minute))))) (. .)))
The normal breathing rate of a dog is between 12 to 20 times 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))) (. .)))