9607
AKR1B19 exhibits the highest catalytic efficiency for 4 - oxo - 2 - nonenal , a major product of lipid peroxidation , compared to known reductases of this aldehyde .
 Chemical: 4 - oxo - 2 - nonenal; Chemical: aldehyde
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: 4 - oxo - 2 - nonenal, aldehyde 
Answer:
 Chemical: 4 - oxo - 2 - nonenal; Chemical: aldehyde