( ( Top ( of ( ( Page Exposure ) ( to ( Harmful ( Substances ( Pregnant women ) ) ) ) ) ) ) ( ( should ( avoid ( ( ( ( exposure ( to ( ( ( ( toxic and ) chemical ) substances ) ( -LRB- ( ( ( i.e. , ) ( ( lead and ) pesticides ) ) -RRB- ) ) ) ) ) , ) and ) ( radiation ( -LRB- ( i.e. ( , ( x-rays -RRB- ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Top)) (PP (IN of) (NP (NP (NNP Page) (NNP Exposure)) (PP (TO to) (NP (NNP Harmful) (NNP Substances) (NNP Pregnant) (NNS women)))))) (VP (MD should) (VP (VB avoid) (NP (NP (NP (NN exposure)) (PP (TO to) (NP (NP (ADJP (NN toxic) (CC and) (NN chemical)) (NNS substances)) (PRN (-LRB- -LRB-) (NP (NNP i.e.)) (, ,) (NP (NN lead) (CC and) (NNS pesticides)) (-RRB- -RRB-))))) (, ,) (CC and) (NP (NP (NN radiation)) (PRN (-LRB- -LRB-) (FW i.e.) (, ,) (ADJP (JJ x-rays)) (-RRB- -RRB-)))))) (. .)))
Top of Page Exposure to Harmful Substances Pregnant women should avoid exposure to toxic and chemical substances (i.e., lead and pesticides), and radiation (i.e., x-rays).
(ROOT (S (NP (DT A) (JJ pregnant) (NN woman)) (VP (MD should) (VP (VB avoid) (NP (JJ toxic) (NNS substances)) (SBAR (IN while) (FRAG (ADJP (JJ pregnant)))))) (. .)))