2122
We describe a patient with no previous history of cardiac disease or arrhythmia who developed sustained bigeminy and 2 brief runs of ventricular tachycardia after caffeine administration .
 Disease: cardiac disease; Disease: arrhythmia; Disease: ventricular tachycardia; Chemical: caffeine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: cardiac disease; Disease: arrhythmia; Disease: ventricular tachycardia; Chemical: caffeine