8457
Margaret II , Countess of Hainault ( 1311–1356 ) , married Louis IV , Holy Roman Emperor
 person: Margaret II , Countess of Hainault; person: Louis IV , Holy Roman Emperor
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: Margaret II , Countess of Hainault; person: Louis IV , Holy Roman Emperor