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Global gene expression analysis reveals pathway differences between teratogenic and non - teratogenic exposure concentrations of bisphenol A and 17 beta - estradiol in embryonic zebrafish .
 Chemical: bisphenol A; Chemical: 17 beta - estradiol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: bisphenol A; Chemical: 17 beta - estradiol