4320
We found that the naloxone - induced morphine withdrawal syndrome was significantly suppressed by new synthetic 3 , 4 , 5 - trimethoxycinnamic acid derivatives ( 20 mg / kg / day ) .
 Chemical: naloxone; Chemical: morphine; Chemical: 3 , 4 , 5 - trimethoxycinnamic acid
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: naloxone, morphine, 3 , 4 , 5 - trimethoxycinnamic acid 
Answer:
 Chemical: naloxone; Chemical: morphine; Chemical: 3 , 4 , 5 - trimethoxycinnamic acid