Earlier, on page 49, we learnt about Agnodice,  who lived to become the world's first known woman gynaecologist,  in the fourth century BC.
( Earlier ( , ( ( on ( page 49 ) ) ( , ( we ( ( learnt ( about ( ( Agnodice , ) ( who ( lived ( to ( become ( ( ( ( the ( world 's ) ) ( first ( known ( woman gynaecologist ) ) ) ) , ) ( in ( the ( fourth ( century BC ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) ) ) )
(ROOT (S (ADVP (RB Earlier)) (, ,) (PP (IN on) (NP (NN page) (CD 49))) (, ,) (NP (PRP we)) (VP (VBD learnt) (PP (IN about) (NP (NP (NNP Agnodice)) (, ,) (SBAR (WHNP (WP who)) (S (VP (VBD lived) (S (VP (TO to) (VP (VB become) (NP (NP (NP (DT the) (NN world) (POS 's)) (JJ first) (JJ known) (NN woman) (NN gynaecologist)) (, ,) (PP (IN in) (NP (DT the) (JJ fourth) (NN century) (NN BC))))))))))))) (. .)))
We have already read about the world's first known woman gynecologist, Agnodice.
( We ( ( ( have already ) ( read ( about ( ( ( ( the ( world 's ) ) ( first ( known ( woman gynecologist ) ) ) ) , ) Agnodice ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP have) (ADVP (RB already)) (VP (VBN read) (PP (IN about) (NP (NP (NP (DT the) (NN world) (POS 's)) (JJ first) (JJ known) (NN woman) (NN gynecologist)) (, ,) (NP (NNP Agnodice)))))) (. .)))