4680
However , it has been controversial whether fetal Leydig cells can produce testosterone , and the synthetic pathway of testosterone in the fetal testis is not fully understood .
 Chemical: testosterone; Chemical: testosterone
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: testosterone, testosterone 
Answer:
 Chemical: testosterone; Chemical: testosterone