16670
RESULTS : The function of mu - opioid receptor was increased by treatment with ethanol in the lower midbrain using [ ( 35 ) S ] GTP gamma S binding assay .
 Chemical: ethanol; Chemical: [ ( 35 ) S ] GTP gamma S
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: ethanol; Chemical: [ ( 35 ) S ] GTP gamma S