253641
A Bruce exercise test involved walking on a treadmill while the heart was monitored by an electrocardiograph with various electrode s attached to the body .
 person: Bruce
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Bruce 
Answer:
 person: Bruce