9606
E had the largest effect on antioxidant activity against oxygen , hydroxyl , and ABTS ( . + ) radicals .
 Chemical: oxygen; Chemical: hydroxyl; Chemical: ABTS ( . + )
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: oxygen, hydroxyl, ABTS ( . + ) 
Answer:
 Chemical: oxygen; Chemical: hydroxyl; Chemical: ABTS ( . + )