12209
Additionally , pyrroloquinoxalines are also important intermediates for the construction of 5 - HT3 receptor agonists .
 Chemical: pyrroloquinoxalines
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: pyrroloquinoxalines 
Answer:
 Chemical: pyrroloquinoxalines