12205
Catalyst oxidation by O ( 2 ) is turnover limiting with benzylic alcohols , while numerous steps contribute to the turnover rate in the oxidation of aliphatic alcohols .
 O ( 2 ), benzylic alcohols, aliphatic alcohols
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 O ( 2 ), benzylic alcohols, aliphatic alcohols