{"citations":{"source_mix":{"company_owned":10,"independent":16,"unclear":10},"sources_referenced_by_questions":0,"support_mix":{"direct":24,"partial":6},"total_sources":36,"unique_domain_count":26},"claims":[{"claim_id":"claim-001","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platforms_analyzed","qualifier":"valid included platform responses","subject":"Best Stairlifts for Narrow Staircases","unit":"platforms","value":7},{"claim_id":"claim-002","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","deepseek","grok","kimi"],"predicate":"final_consensus_rank","qualifier":"Compact & Narrow Stairways","subject":"Bruno Elan SRE-3050","unit":"rank","value":6},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","deepseek","grok","kimi"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Bruno Elan SRE-3050","unit":"platforms","value":4},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-26","platform_support":["grok"],"predicate":"fit_rating_count","qualifier":"strong","subject":"Bruno Elan SRE-3050","unit":"platforms","value":1},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-09-26","platform_support":["openai","anthropic","perplexity","google"],"predicate":"fit_rating_count","qualifier":"good","subject":"Bruno Elan SRE-3050","unit":"platforms","value":4},{"claim_id":"claim-006","confidence":"verified","observed_at":"2026-09-26","platform_support":["deepseek"],"predicate":"fit_rating_count","qualifier":"mixed","subject":"Bruno Elan SRE-3050","unit":"platforms","value":1},{"claim_id":"claim-007","confidence":"verified","observed_at":"2026-09-26","platform_support":["kimi"],"predicate":"fit_rating_count","qualifier":"uncertain","subject":"Bruno Elan SRE-3050","unit":"platforms","value":1}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":2.75,"best_rank":2,"entity_id":"entity-001","entity_type":"company","final_rank":6,"name":"Bruno Elan SRE-3050","platform_mentions":4,"platform_share":0.5714285714285714}],"identity":{"dataset_url":"https://aginginplaceindex.com/datasets/stairlifts/compact-narrow-stairways/bruno-elan-sre-3050.json","page_url":"https://aginginplaceindex.com/stairlifts/compact-narrow-stairways/bruno-elan-sre-3050","report_type":"fit_review","study_id":"AIPI-STUDY-D1BFB022E9A3","title":"Bruno Elan SRE-3050 Review for Narrow Staircases"},"limitations":["Use the run researchdate as the study date. Platform-reported dates are provenance metadata and do not independently prove freshness.","All included platforms evaluated fit, but platformmentions counts only platforms that named the entity during ranking discovery.","Do not resolve conflicting product names, pricing, or capabilities by guessing; describe the conflict and tell buyers what to verify.","The supplied URLs were collected from platform responses and were not independently validated by the writer stage.","Platform-reported research dates differ from the authoritative run date; disclose this as a methodology limitation.","Citations are platform-reported evidence, not independently verified facts. No-search model claims require explicit verification before being described as current facts."],"methodology":{"fit_rating_contract":["strong","good","mixed","weak","uncertain"],"included_valid_platform_count":7,"maximum_finalists":10,"minimum_mentions":2,"name":"Aging in Place Index cross-platform AI consensus analysis","platforms_included":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"platforms_queried":["openai","anthropic","deepseek","grok","perplexity","kimi","google"],"stages":["ranking_discovery","fit_assessment","normalization","editorial_synthesis"],"version":"alias-table-1"},"provenance":{"generated_at":"2026-09-26 11:15:25.657524+00","research_date":"2026-09-26","source_snapshot_sha256":"1d54a0eaa8670d2865870c5499e69ee32928df4c879ee48e9a20e3c7b2cd7689","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":19,"qualified_finalists":7,"ranking_unit":"Stairlift model and manufacturer"},"schema_version":4,"summary":"The Bruno Elan SRE-3050 is a good — but not automatic — fit for compact and narrow stairways. Four of the seven platforms in this study named it during the ranking stage, and those four placed it at an average rank of 2.75 (best rank 2). Its strongest asset is a narrow vertical rail that mounts close to the wall plus seat, arms, and footrest that fold upward to preserve walking space. The main limitation is that no verified universal minimum stairway width, exact folded obstruction depth, or swivel-clearance radius was confirmed in the reviewed materials, so a dealer measurement is required…","target_buyer":"Homeowners needing a stairlift installed on narrow stairways (under 30 inches) without blocking foot traffic","topic":{"base_category":"Stairlifts","category_criteria":["Minimum staircase width requirement","folded profile depth","slim rail design","folding footrest and armrest clearance","swivel radius"],"geography":"United States","slug":"best-stairlifts-for-narrow-staircases","title":"Best Stairlifts for Narrow Staircases","use_case":"Compact & Narrow Stairways"}}