The Festival was held mid-May on the grounds of the Dortmund exhibition.

Entity and relation annotations:
id: 0
type: entity
value: text: The Festival
labels: <Event>
id: 1
type: entity
value: text: the grounds of the Dortmund exhibition
labels: <Location>
type: relation
to_id: 1
labels: Event:Occurs_at:Location
from_id: 0