17009
Arachidonic acid ( ARA ) undergoes enzyme - mediated oxidative metabolism , resulting in the formation of a number of biologically active metabolites .
 Chemical: Arachidonic acid; Chemical: ARA
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: Arachidonic acid, ARA 
Answer:
 Chemical: Arachidonic acid; Chemical: ARA