The Rurik princess Agafia of Rus became his wife.

Entity and relation annotations:
id: 0
type: entity
value: text: The Rurik princess
labels: <Title>
id: 1
type: entity
value: text: Agafia
labels: <Person>
id: 2
type: entity
value: text: Rus
labels: <Location>
type: relation
to_id: 0
labels: Person:holds_title:Title
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type: relation
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labels: Person:resides_at:Location
from_id: 1