9131
The pharmacological blockade of K ( + ) channels with tetraethylammonium , glybenclamide , and 4 - aminopyridine also blunted vasorelaxation induced by 1 - nitro - 2 - phenylethane .
 Chemical: K ( + ); Chemical: tetraethylammonium; Chemical: glybenclamide; Chemical: 4 - aminopyridine; Chemical: 1 - nitro - 2 - phenylethane
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: K ( + ); Chemical: tetraethylammonium; Chemical: glybenclamide; Chemical: 4 - aminopyridine; Chemical: 1 - nitro - 2 - phenylethane