21657
OBJECTIVES : We sought to investigate the roles of dopamine D1 / D5 receptors and alpha - amino - 3 - hydroxy - 5 - methyl - 4 - isoxazolepropionic acid ( AMPA ) receptors in hippocampal synaptic transmission and spatial memory impairment induced by ketamine .
 Chemical: dopamine; Chemical: alpha - amino - 3 - hydroxy - 5 - methyl - 4 - isoxazolepropionic acid; Chemical: AMPA; Chemical: ketamine
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: dopamine, alpha - amino - 3 - hydroxy - 5 - methyl - 4 - isoxazolepropionic acid, AMPA, ketamine 
Answer:
 Chemical: dopamine; Chemical: alpha - amino - 3 - hydroxy - 5 - methyl - 4 - isoxazolepropionic acid; Chemical: AMPA; Chemical: ketamine