13915
However , a strong disturbance of the oxidative defense system was observed after incubation with absolutely sub - cytotoxic , pico - to nanomolar concentrations of arsenite and thio - DMA ( V ) , respectively .
 Chemical: arsenite; Chemical: thio - DMA
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: arsenite, thio - DMA 
Answer:
 Chemical: arsenite; Chemical: thio - DMA