30471
In addition , during acute exposure tests performed at the end of the chronic exposure , biofilms chronically exposed to 75 and 150 mu gL ( - 1 ) oxyfluorfen showed a higher CAT activity than controls .
 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