4894
These studies demonstrate that the effects of ethanol at GABAergic synapses containing alpha 2 subunit are important for specific behavioral effects of ethanol which may be relevant to the genetic linkage of the alpha 2 subunit with human alcoholism .
 Chemical: ethanol; Chemical: ethanol
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: ethanol