9148
In the hippocampus , MDMA potentiated the alpha 7 regulatory effects of NIC ( raising a 25 . 5 % increase to 52 . 5 % ) but alone was devoid of effect .
 Chemical: MDMA; Chemical: NIC
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: MDMA, NIC 
Answer:
 Chemical: MDMA; Chemical: NIC