10475
At two sampling sites , elevated levels of estrogenic activity up to 55 , 000 ng ethinylestradiol equivalents per kilogram sediment dry weight were detected in the respective sediment extracts .
 Chemical: ethinylestradiol
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: ethinylestradiol