4904
OP and BPA are known as endocrine disruptors ( EDs ) with estrogenic activities , and may disturb natural calcium ( Ca ) metabolism .
 Chemical: BPA; Chemical: calcium; Chemical: Ca
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: BPA; Chemical: calcium; Chemical: Ca