23854
The other two channels forming 1 - buten - 2 - ol , 2 - buten - 2 - ol and HO2 radical are not dominant but are still important product channels over the whole temperature range investigated here .
 Chemical: 1 - buten - 2 - ol; Chemical: 2 - buten - 2 - ol; Chemical: HO2
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: 1 - buten - 2 - ol; Chemical: 2 - buten - 2 - ol; Chemical: HO2