7803
Such changes may reflect altered amphetamine - induced extracellular dopamine release in the corticoaccumbal regions .
 Chemical: amphetamine; Chemical: dopamine
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: amphetamine, dopamine 
Answer:
 Chemical: amphetamine; Chemical: dopamine