10476
Aliquots of the sediment extracts were analyzed for 4 - nonylphenols and natural steroidal estrogens as possible candidates with an estrogenic potential .
 Chemical: 4 - nonylphenols; Chemical: steroidal estrogens
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: 4 - nonylphenols; Chemical: steroidal estrogens