{"nursery":{"id":16,"name":"Central Experimental Farm","normalized_name":"central experimental farm","source_document_id":27,"created_at":"2026-03-09T15:14:13"},"relationships":[{"id":274,"relation_type":"offered_by_candidate_nursery","subject_entity_type":"cultivar","subject_entity_id":251,"object_entity_type":"nursery","object_entity_id":16,"source_document_id":79,"created_at":"2026-03-09T15:14:31"},{"id":272,"relation_type":"offered_by_candidate_nursery","subject_entity_type":"cultivar","subject_entity_id":250,"object_entity_type":"nursery","object_entity_id":16,"source_document_id":79,"created_at":"2026-03-09T15:14:31"},{"id":270,"relation_type":"mentioned_in_document","subject_entity_type":"nursery","subject_entity_id":16,"object_entity_type":"document","object_entity_id":79,"source_document_id":79,"created_at":"2026-03-09T15:14:31"},{"id":181,"relation_type":"mentioned_in_document","subject_entity_type":"nursery","subject_entity_id":16,"object_entity_type":"document","object_entity_id":34,"source_document_id":34,"created_at":"2026-03-09T15:14:15"},{"id":173,"relation_type":"mentioned_in_document","subject_entity_type":"nursery","subject_entity_id":16,"object_entity_type":"document","object_entity_id":27,"source_document_id":27,"created_at":"2026-03-09T15:14:13"}],"history_events":[{"id":617,"event_type":"nursery_mention","label":"Central Experimental Farm","normalized_label":"central experimental farm","event_year":1911,"source_document_id":79,"note":"auto-extracted nursery mention","created_at":"2026-03-09T15:14:31"},{"id":372,"event_type":"nursery_mention","label":"Central Experimental Farm","normalized_label":"central experimental farm","event_year":1911,"source_document_id":34,"note":"auto-extracted nursery mention","created_at":"2026-03-09T15:14:15"},{"id":369,"event_type":"selection_origin_event","label":"Selection origin Central Experimental Farm, Ottawa, Agriculture Canada, by Dr","normalized_label":"selection origin central experimental farm, ottawa, agriculture canada, by dr","event_year":null,"source_document_id":34,"note":"auto-extracted selection-origin marker","created_at":"2026-03-09T15:14:15"},{"id":339,"event_type":"nursery_mention","label":"Central Experimental Farm","normalized_label":"central experimental farm","event_year":2003,"source_document_id":27,"note":"auto-extracted nursery mention","created_at":"2026-03-09T15:14:13"}],"linked_entities":[{"relation_type":"offered_by_candidate_nursery","entity_type":"cultivar","entity_id":251,"label":"Rideau"},{"relation_type":"offered_by_candidate_nursery","entity_type":"cultivar","entity_id":250,"label":"Northern Queen"},{"relation_type":"mentioned_in_document","entity_type":"document","entity_id":79,"label":"Trail"},{"relation_type":"mentioned_in_document","entity_type":"document","entity_id":34,"label":"Columbia"},{"relation_type":"mentioned_in_document","entity_type":"document","entity_id":27,"label":"ANCESTRY OF APPLE SELECTIONS AT THE UNIVERSITY OF SASKATCHEWAN"}]}