Yoshinaka entered the Genpei War raising an army and invading Echigo Province.

Entity and relation annotations:
id: 0
type: entity
value: text: Yoshinaka
labels: <Person>
id: 1
type: entity
value: text: the Genpei War
labels: <Event>
id: 2
type: entity
value: text: Echigo Province
labels: <Location>
type: relation
to_id: 1
labels: Person:participates_in:Event
from_id: 0
type: relation
to_id: 2
labels: Person:visits:Location
from_id: 0