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Also , in contrast to what was seen with WT GlyRs , neither adding nor chelating zinc changed the magnitude of ethanol enhancement of mutant D80A receptors .
 Chemical: zinc; 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: zinc; Chemical: ethanol