( ( Examination ( of ( the ( musculoskeletal ( system examination ) ) ) ) ) ( ( showed ( widening ( of ( ( the ( elbows ( , ( wrists ( , ( knees ( and ( interphalangeal joints ) ) ) ) ) ) ) ) ( of ( the ( ( hands and ) feet ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Examination)) (PP (IN of) (NP (DT the) (JJ musculoskeletal) (NN system) (NN examination)))) (VP (VBD showed) (NP (NP (NN widening)) (PP (IN of) (NP (NP (DT the) (NNS elbows) (, ,) (NNS wrists) (, ,) (NNS knees) (CC and) (NN interphalangeal) (NNS joints)) (PP (IN of) (NP (DT the) (NNS hands) (CC and) (NNS feet))))))) (. .)))
Examination of the musculoskeletal system examination showed widening of the elbows, wrists, knees and interphalangeal joints of the hands and feet.
(ROOT (S (NP (NNS Knees) (CC and) (NNS elbows)) (VP (VBP are) (NP (NP (NNS examples)) (PP (IN of) (NP (NP (DT the) (NNS joints)) (PP (IN of) (NP (DT the) (JJ skeletal) (NN system))))))) (. .)))