23852
Our calculated results show that the four reaction channels forming 1 - buten - 2 - ol + H y O2 radical ( R5 ) , 2 - buten - 2 - ol + H y O2 radical ( R10 ) , acetic acid + ethylene + y O H radical ( R13 ) , 2 - methyl - 2 - oxetanol + y OH radical ( R15 ) are the dominant channels .
 Chemical: 1 - buten - 2 - ol; Chemical: H y O2; Chemical: 2 - buten - 2 - ol; Chemical: H y O2; Chemical: acetic acid; Chemical: ethylene; Chemical: O H; Chemical: 2 - methyl - 2 - oxetanol; Chemical: OH
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: H y O2; Chemical: 2 - buten - 2 - ol; Chemical: H y O2; Chemical: acetic acid; Chemical: ethylene; Chemical: O H; Chemical: 2 - methyl - 2 - oxetanol; Chemical: OH