( ( ( Menstrual Cycle ) ( ( The ( repeating ( , ( month-long cycle ) ) ) ) ( of ( change ( in ( ( the lining ) ( of ( the uterus ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Menstrual) (NNP Cycle)) (NP (NP (DT The) (JJ repeating) (, ,) (JJ month-long) (NN cycle)) (PP (IN of) (NP (NP (NN change)) (PP (IN in) (NP (NP (DT the) (NN lining)) (PP (IN of) (NP (DT the) (NN uterus)))))))) (. .)))
Menstrual Cycle The repeating, month-long cycle of change in the lining of the uterus.
(ROOT (S (NP (JJ Menstrual) (NN cycle)) (VP (VBZ is) (NP (NP (DT the) (NN name)) (PP (IN for) (NP (NP (DT a) (NN series)) (PP (IN of) (NP (NP (NNS changes)) (PP (IN in) (NP (NP (DT the) (JJ reproductive) (NN system)) (PP (IN of) (NP (JJ mature) (NNS females))))))))) (SBAR (WHNP (WDT that)) (S (VP (VBZ repeats) (NP (NP (DT every) (NN month)) (PP (IN on) (NP (NN average))))))))) (. .)))