653
The later enhancement was attenuated after intra - accumbens shell treatment with GR 55562 ( 1 microg / side ) .
 Chemical: GR 55562
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: GR 55562 
Answer:
 Chemical: GR 55562