Dublin Castle hosts the Heineken Green Energy festival each May bank holiday weekend.

Entity and relation annotations:
id: 0
type: entity
value: text: Dublin Castle
labels: <Location>
id: 1
type: entity
value: text: the Heineken Green Energy
labels: <Event>
id: 2
type: entity
value: text: each May bank holiday weekend
labels: <Date>
type: relation
to_id: 0
labels: Event:Occurs_at:Location
from_id: 1
type: relation
to_id: 2
labels: Event:Occurs_on:Date
from_id: 1