30472
Chronic exposure to oxyfluorfen provoked then structural changes but also functional changes in the capacity of biofilm CAT activity to respond to a sudden increase in concentration , suggesting a selection of species with higher antioxidant capacity .
 Chemical: oxyfluorfen
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: oxyfluorfen 
Answer:
 Chemical: oxyfluorfen