23445
Additionally , BPA significantly decreased the epithelial height and round spermatids in seminiferous tubules , sperm count , androgen receptor expression , and the expression of the spermatogenesis - related genes outer dense fiber protein 1 ( ODF1 ) and transition protein 1 .
 Chemical: BPA; Chemical: androgen
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: BPA, androgen 
Answer:
 Chemical: BPA; Chemical: androgen