18920
The antinociception of 1 ( 40 mg / kg ) was prevented by naloxone ( nonselective opioid receptor antagonist ; 5 mg / kg ) , CTOP ( mu - opioid receptor antagonist ; 1 mg / kg ) , nor - BNI ( kappa - opioid receptor antagonist ; 0 . 5 mg / kg ) , naltrindole ( delta - opioid receptor antagonist ; 3 mg / kg ) , or glibenclamide ( ATP - sensitive K ( + ) channel blocker ; 2 mg / kg ) .
 Chemical: naloxone; Chemical: CTOP; Chemical: nor - BNI; Chemical: naltrindole; Chemical: glibenclamide; Chemical: ATP; Chemical: K ( + )
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: naloxone, CTOP, nor - BNI, naltrindole, glibenclamide, ATP, K ( + ) 
Answer:
 Chemical: naloxone; Chemical: CTOP; Chemical: nor - BNI; Chemical: naltrindole; Chemical: glibenclamide; Chemical: ATP; Chemical: K ( + )