26846
This is the first report on aspects of substituted methcathinone efficacies at serotonin ( 5 - HT ) receptors and in superfusion release assays .
 Chemical: methcathinone; Chemical: serotonin; Chemical: 5 - HT
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: methcathinone, serotonin, 5 - HT 
Answer:
 Chemical: methcathinone; Chemical: serotonin; Chemical: 5 - HT