29948
One conductance featured a Na ( + ) - independent and K ( + ) - dependent net current that displayed rectification and was suppressed by micromolar concentrations of Ba ( 2 + ) and two GIRK antagonists , tertiapin Q and SCH 23390 .
 Chemical: Na ( + ); Chemical: K ( + ); Chemical: Ba ( 2 + ); Chemical: SCH 23390
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Na ( + ), K ( + ), Ba ( 2 + ), SCH 23390 
Answer:
 Chemical: Na ( + ); Chemical: K ( + ); Chemical: Ba ( 2 + ); Chemical: SCH 23390