6359
Altogether , these proteins stand at the crossroad of glutamate - dopamine - serotonin signaling pathways and may be considered as valuable molecular targets for current and new antipsychotics .
 Chemical: glutamate; Chemical: dopamine; Chemical: serotonin
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: glutamate, dopamine, serotonin 
Answer:
 Chemical: glutamate; Chemical: dopamine; Chemical: serotonin