5088
Augustus , the first Emperor , had nominally shared power with his colleagues , and more formal offices of Co-Emperor had existed from Marcus Aurelius onward .
 person: Augustus; person: Marcus Aurelius
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Augustus; person: Marcus Aurelius