( ( Medial rotation ) ( ( is ( signified ( by ( a ( negative number ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Medial) (NN rotation)) (VP (VBZ is) (VP (VBN signified) (PP (IN by) (NP (DT a) (JJ negative) (NN number))))) (. .)))
Medial rotation is signified by a negative number.
(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))))))))))) (. .)))