577
Metabotropic glutamate 7 ( mGlu7 ) receptor : a target for medication development for the treatment of cocaine dependence .
 Chemical: glutamate; Chemical: cocaine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: glutamate; Chemical: cocaine