input: 1950 European Aquatics Championships [SEP] instance of
meta.obj_surface: LEN European Aquatics Championships European Swimming Championships European Championships European LC Championships
meta.sub_surface: 1950 European Aquatics Championships
output.answer: LEN European Aquatics Championships
output.annotation_id: -1
output.section: Section::::Abstract.
output.title: 1950 European Aquatics Championships
output.wikipedia_id: 25290887
output.answer: LEN European Championships