( ( ( The sum ) ( of ( ( ( medial and ) lateral ) ( hip rotation ) ) ) ) ( ( is ( termed ( `` ( the excursion ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN sum)) (PP (IN of) (NP (ADJP (JJ medial) (CC and) (JJ lateral)) (NN hip) (NN rotation)))) (VP (VBZ is) (VP (VBN termed) (S (`` ``) (NP (DT the) (NN excursion))))) (. .)))
The sum of medial and lateral hip rotation is termed &quot;the excursion.
(ROOT (S (NP (JJ Medial) (NN rotation)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (NN rotation)) (PP (IN of) (NP (NP (DT a) (NN bone)) (PP (IN toward) (NP (NP (DT the) (NN midline)) (PP (IN of) (NP (DT the) (NN body))))))))))) (. .)))