The "Tribune" sponsors the annual Portland Regional Spelling Bee for middle school students.

Entity and relation annotations:
id: 0
type: entity
value: text: The "Tribune"
labels: <Organization>
id: 1
type: entity
value: text: Portland Regional Spelling Bee
labels: <Event>
id: 2
type: entity
value: text: Portland Regional
labels: <Location>
type: relation
to_id: 1
labels: Organization:Engagement:Event
from_id: 0
type: relation
to_id: 2
labels: Event:Occurs_at:Location
from_id: 1