Many people, especially Ukrainians, migrated to Pavlodar in Nikita Khrushchev's Virgin Lands Campaign.

Entity and relation annotations:
id: 0
type: entity
value: text: Ukrainians
labels: <Organization>
id: 1
type: entity
value: text: Pavlodar
labels: <Location>
id: 2
type: entity
value: text: Nikita Khrushchev
labels: <Person>
id: 3
type: entity
value: text: Virgin Lands Campaign
labels: <Event>
type: relation
to_id: 3
labels: Person:participates_in:Event
from_id: 2