9983
The interactions of apamin and tetraethylammonium are differentially affected by single mutations in the pore mouth of small conductance calcium - activated potassium ( SK ) channels .
 Chemical: tetraethylammonium; Chemical: calcium; 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: tetraethylammonium; Chemical: calcium; Chemical: potassium