( ( ( ( ( ( ( ( Heart rate ) and ) ( respiration ( ( A ( dog 's ) ) ( normal ( heart rate ) ) ) ) ) ( is ( ( ( ( 100 to ) 120 ) beats ) ( per minute ) ) ) ) , ) and ) ( ( its ( respiratory rate ) ) ( should ( be ( ( ( about 22 ) breaths ) ( per minute ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (NNP Heart) (NN rate)) (CC and) (NP (NP (NN respiration)) (NP (NP (DT A) (NN dog) (POS 's)) (JJ normal) (NN heart) (NN rate)))) (VP (VBZ is) (NP (NP (QP (CD 100) (TO to) (CD 120)) (NNS beats)) (PP (IN per) (NP (NN minute)))))) (, ,) (CC and) (S (NP (PRP$ its) (JJ respiratory) (NN rate)) (VP (MD should) (VP (VB be) (NP (NP (QP (RB about) (CD 22)) (NNS breaths)) (PP (IN per) (NP (NN minute))))))) (. .)))
Heart rate and respiration A dog's normal heart rate is 100 to 120 beats per minute, and its respiratory rate should be about 22 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))) (. .)))