After the death of his brother, Domitian was declared emperor by the Praetorian Guard.

Entity and relation annotations:
id: 0
type: entity
value: text: Domitian
labels: <Person>
id: 1
type: entity
value: text: the Praetorian Guard
labels: <Organization>
id: 2
type: entity
value: text: emperor
labels: <Title>
type: relation
to_id: 2
labels: Person:holds_title:Title
from_id: 0