10559
The three brothers marry valkyries they encounter in swans ' form , Slagfiðr marries Hlaðguðr svanhvít , and Völund marries Hervör alvitr , daughters of king Hlödver , while Egil marries Ölrún , a daughter of the Roman Emperor ( Kiár of Valland ) .
 person: Slagfiðr; person: Hlaðguðr; person: Völund; person: Hervör; person: Hlödver; person: Egil; person: Ölrún; location: Valland
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: Slagfiðr; person: Hlaðguðr; person: Völund; person: Hervör; person: Hlödver; person: Egil; person: Ölrún; location: Valland