( It ( ( ( does nothing ) ( ( ( to ( disrupt ( ( ( ovulation , ) ( the ( menstrual cycle ) ) ) , ) ) ) or ) ( to ( thicken ( the ( cervical mucous ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ does) (NP (NN nothing)) (S (VP (VP (TO to) (VP (VB disrupt) (NP (NP (NN ovulation)) (, ,) (NP (DT the) (JJ menstrual) (NN cycle)) (, ,)))) (CC or) (VP (TO to) (VP (VB thicken) (NP (DT the) (JJ cervical) (NNS mucous))))))) (. .)))
It does nothing to disrupt ovulation, the menstrual cycle, or to thicken the cervical mucous.
(ROOT (S (NP (NNP Ovulation)) (VP (VBZ occurs) (SBAR (IN before) (S (NP (DT the) (NN endometrium)) (VP (VBZ thickens) (PP (IN in) (NP (JJ estrous) (NNS cycles))))))) (. .)))