( ( ( ( ( Estrogens , ) or ) ( female ( sex hormones ) ) ) , ) ( ( stimulate ( ( ( cells ( of ( your breasts ) ) ) and ) ( ( reproductive system ) ( to ( ( divide and ) proliferate ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Estrogens)) (, ,) (CC or) (NP (JJ female) (NN sex) (NNS hormones)) (, ,)) (VP (VB stimulate) (NP (NP (NP (NNS cells)) (PP (IN of) (NP (PRP$ your) (NNS breasts)))) (CC and) (NP (NP (JJ reproductive) (NN system)) (PP (TO to) (NP (NN divide) (CC and) (NN proliferate)))))) (. .)))
Estrogens, or female sex hormones, stimulate cells of your breasts and reproductive system to divide and proliferate.
(ROOT (S (NP (DT The) (JJ female) (JJ reproductive) (NN system)) (VP (VBZ consists) (PP (IN of) (NP (NP (NNS structures)) (SBAR (WHNP (WDT that)) (S (VP (VP (VB produce) (NP (NNS eggs))) (, ,) (VP (VB secrete) (NP (JJ female) (NN sex) (NNS hormones))) (, ,) (CC and) (VP (ADVP (RB ultimately)) (VB enable) (NP (NP (NN birth)) (PP (IN of) (NP (DT a) (NN fetus))))))))))) (. .)))