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An increase in the ADP / ATP ratio opens K ( ATP ) channels , leading to membrane hyperpolarization .
 Chemical: ADP; Chemical: ATP; Chemical: K; Chemical: ATP
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: ADP; Chemical: ATP; Chemical: K; Chemical: ATP