2693
Major components of TR in faeces were unchanged AA ( 55 . 3 % of TR ) and abiraterone ( 22 . 3 % of TR ) .
 Chemical: abiraterone
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: abiraterone