15869
Triazolo and imidazo dihydropyrazolopyrimidine potassium channel antagonists .
 Chemical: Triazolo and imidazo dihydropyrazolopyrimidine; Chemical: potassium
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: Triazolo and imidazo dihydropyrazolopyrimidine; Chemical: potassium