11139
3 , 17 beta - Hydroxysteroid dehydrogenase ( 3 , 17 beta - HSD ) from C . testosteroni is a member of the short - chain dehydrogenase / reductase ( SDR ) superfamily and a key enzyme in steroid degradation .
 Chemical: 3 , 17 beta - Hydroxysteroid; Chemical: steroid
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: 3 , 17 beta - Hydroxysteroid, steroid 
Answer:
 Chemical: 3 , 17 beta - Hydroxysteroid; Chemical: steroid