Waterloo Catholic District School Board, which operates the Catholic schools in Waterloo Region.

Entity and relation annotations:
id: 0
type: entity
value: text: Waterloo Catholic District School Board
labels: <Organization>
id: 1
type: entity
value: text: Waterloo
labels: <Location>
id: 2
type: entity
value: text: Waterloo Region
labels: <Location>
type: relation
to_id: 1
labels: Organization:located_in:Location
from_id: 0