79988
The title of all Emperors preceding Heraclius was officially " " Augustus " " , although other titles such as " Dominus " were also used .
 Heraclius, Augustus, Dominus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Heraclius, Augustus, Dominus