They had at least three children, Prince Karu, Princess Hidaka and Princess Kibi.

Entity and relation annotations:
id: 0
type: entity
value: text: Prince
labels: <Title>
id: 1
type: entity
value: text: Princess
labels: <Title>
id: 2
type: entity
value: text: Princess
labels: <Title>
id: 3
type: entity
value: text: Karu
labels: <Person>
id: 4
type: entity
value: text: Hidaka
labels: <Person>
id: 5
type: entity
value: text: Kibi
labels: <Person>
type: relation
to_id: 0
labels: Person:holds_title:Title
from_id: 3
type: relation
to_id: 1
labels: Person:holds_title:Title
from_id: 4
type: relation
to_id: 2
labels: Person:holds_title:Title
from_id: 5
type: relation
to_id: 4
labels: Person:family:Person
from_id: 3
type: relation
to_id: 5
labels: Person:family:Person
from_id: 3
type: relation
to_id: 5
labels: Person:family:Person
from_id: 4