{"nursery":{"id":31,"name":"Nursery Stock Orchard","normalized_name":"nursery stock orchard","source_document_id":106,"created_at":"2026-03-11T22:44:03"},"relationships":[{"id":344,"relation_type":"mentioned_in_document","subject_entity_type":"nursery","subject_entity_id":31,"object_entity_type":"document","object_entity_id":106,"source_document_id":106,"created_at":"2026-03-11T22:44:03"}],"history_events":[{"id":746,"event_type":"nursery_mention","label":"Nursery Stock Orchard","normalized_label":"nursery stock orchard","event_year":1950,"source_document_id":106,"note":"auto-extracted nursery mention","created_at":"2026-03-11T22:44:03"}],"linked_entities":[{"relation_type":"mentioned_in_document","entity_type":"document","entity_id":106,"label":"Daniels planting guide, 1950"}]}