13238
Toxicity assessment on trophoblast cells for some environment polluting chemicals and 17 beta - estradiol .
 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: 17 beta - estradiol