Northumberland County is a fifth class county according to the Pennsylvania's County Code.

Entity and relation annotations:
id: 0
type: entity
value: text: Northumberland County
labels: <Location>
id: 1
type: entity
value: text: the Pennsylvania's County Code
labels: <Regulation>
id: 2
type: entity
value: text: Pennsylvania
labels: <Location>
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 0