20555
Exploration of the molecular events that underlie androgen regulation of the ARassociated coregulator FHL2 led to the isolation of a novel indirect mechanism of androgen action that is mediated by the secondary transcription factor Serum Response Factor ( SRF ) .
 Chemical: androgen; 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: androgen, androgen 
Answer:
 Chemical: androgen; Chemical: androgen