7189
The unspecific CHDA was identified as the major urinary metabolite representing 23 . 7 % of the dose as the mean of the three volunteers ( range 20 . 0 - 26 . 5 % ) .
 Chemical: CHDA
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: CHDA 
Answer:
 Chemical: CHDA