21394
Ionic liquid [ HMIM ] HSO4 was found to be an efficient catalyst for the synthesis of N - substituted pyrroles through the reaction of 2 , 5 - hexanedione with amines under ultrasonic irradiation at room temperature .
 Chemical: [ HMIM ] HSO4; Chemical: N - substituted pyrroles; Chemical: 2 , 5 - hexanedione; Chemical: amines
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: [ HMIM ] HSO4, N - substituted pyrroles, 2 , 5 - hexanedione, amines 
Answer:
 Chemical: [ HMIM ] HSO4; Chemical: N - substituted pyrroles; Chemical: 2 , 5 - hexanedione; Chemical: amines