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Quinine is known to block voltage - , calcium - and ATP - sensitive K ( + ) - channels while 4 - aminopyridine is known to block voltage - sensitive K ( + ) - channels .
 Chemical: Quinine; Chemical: calcium; Chemical: ATP; Chemical: K; Chemical: 4 - aminopyridine; Chemical: K
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: Quinine; Chemical: calcium; Chemical: ATP; Chemical: K; Chemical: 4 - aminopyridine; Chemical: K