3165
It should be noted that the adverse clinical effects may be due to other ingredients in the DMAA - containing products , such as caffeine .
 Chemical: DMAA; Chemical: caffeine
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: DMAA, caffeine 
Answer:
 Chemical: DMAA; Chemical: caffeine