23259
State - Dependent Etomidate Occupancy of its Allosteric Agonist Sites Measured in a Cysteine - Substituted GABAA Receptor .
 Chemical: Cysteine
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: Cysteine 
Answer:
 Chemical: Cysteine