29856
In the present study benzothiazinones , e . g . 2 - ( 3 - chlorophenoxy ) - N - ( 4 - oxo - 4H - 3 , 1 - benzothiazin - 2 - yl ) acetamide ( 13 ) , were identified as a novel class of potent MAO - B inhibitors ( IC50 human MAO - B : 1 . 63 nM ) .
 Chemical: benzothiazinones; Chemical: 2 - ( 3 - chlorophenoxy ) - N - ( 4 - oxo - 4H - 3 , 1 - benzothiazin - 2 - yl ) acetamide
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: benzothiazinones, 2 - ( 3 - chlorophenoxy ) - N - ( 4 - oxo - 4H - 3 , 1 - benzothiazin - 2 - yl ) acetamide 
Answer:
 Chemical: benzothiazinones; Chemical: 2 - ( 3 - chlorophenoxy ) - N - ( 4 - oxo - 4H - 3 , 1 - benzothiazin - 2 - yl ) acetamide