( Use ( ( Stethoscopes ( to ( ( listen ( to ( heartbeat ( and ( use sphygmomanometers ) ) ) ) ) ( to ( measure ( blood pressure ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Use)) (VP (VBZ Stethoscopes) (S (VP (TO to) (VP (VB listen) (PP (TO to) (NP (NN heartbeat) (CC and) (NN use) (NNS sphygmomanometers))) (S (VP (TO to) (VP (VB measure) (NP (NN blood) (NN pressure))))))))) (. .)))
Use Stethoscopes to listen to heartbeat and use sphygmomanometers to measure blood pressure.
(ROOT (S (NP (NNP Sphygmomanometer)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB measure) (NP (NN blood) (NN pressure))))))) (. .)))