{"citations":{"source_mix":{"company_owned":27,"independent":5,"unclear":0},"sources_referenced_by_questions":0,"support_mix":{"direct":27,"partial":5},"total_sources":32,"unique_domain_count":10},"claims":[{"claim_id":"claim-001","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platforms_analyzed","qualifier":"valid included platform responses","subject":"Best Stairlifts for Basement Stairs","unit":"platforms","value":7},{"claim_id":"claim-002","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"final_consensus_rank","qualifier":"Basement Access & Utility Stairs","subject":"Stannah 120 Straight Stairlift","unit":"rank","value":1},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-27","platform_support":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Stannah 120 Straight Stairlift","unit":"platforms","value":7},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-27","platform_support":["google"],"predicate":"fit_rating_count","qualifier":"strong","subject":"Stannah 120 Straight Stairlift","unit":"platforms","value":1},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-09-27","platform_support":["deepseek","grok"],"predicate":"fit_rating_count","qualifier":"good","subject":"Stannah 120 Straight Stairlift","unit":"platforms","value":2},{"claim_id":"claim-006","confidence":"verified","observed_at":"2026-09-27","platform_support":["perplexity","kimi"],"predicate":"fit_rating_count","qualifier":"mixed","subject":"Stannah 120 Straight Stairlift","unit":"platforms","value":2},{"claim_id":"claim-007","confidence":"verified","observed_at":"2026-09-27","platform_support":["openai","anthropic"],"predicate":"fit_rating_count","qualifier":"uncertain","subject":"Stannah 120 Straight Stairlift","unit":"platforms","value":2}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":2.5714285714285716,"best_rank":1,"entity_id":"entity-001","entity_type":"company","final_rank":1,"name":"Stannah 120 Straight Stairlift","platform_mentions":7,"platform_share":1}],"identity":{"dataset_url":"https://aginginplaceindex.com/datasets/stairlifts/basement-access-utility-stairs/stannah-120-straight-stairlift.json","page_url":"https://aginginplaceindex.com/stairlifts/basement-access-utility-stairs/stannah-120-straight-stairlift","report_type":"fit_review","study_id":"AIPI-STUDY-B55119190C90","title":"Stannah 120 Straight Stairlift Review for Basement Stairs"},"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.","Company-owned citations materially outnumber independent citations; do not describe company claims as independently verified.","Platform-reported research dates differ from the authoritative run date; disclose this as a methodology limitation.","The deterministic identity audit contains qualification notes that must be disclosed where relevant.","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":"2026-09-27 20:43:31.325395+00","research_date":"2026-09-27","source_snapshot_sha256":"7dc5037b67a0b9531ec74cb843215ece974c226e26614a8b088d66c657a17d93","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":16,"qualified_finalists":6,"ranking_unit":"Stairlift model and manufacturer"},"schema_version":4,"summary":"The Stannah 120 Straight Stairlift is an uncertain fit for Basement Access & Utility Stairs. All seven platforms that named it in the ranking stage placed it in their lists, but none could verify that a model called \"Stannah 120\" exists in Stannah's current US lineup. The strongest reason to consider it is Stannah's verified straight-stair range, which includes obstruction sensors, battery backup, and the Siena One, a model Stannah explicitly markets for basement and garage installations (, , grok:). The main limitation is that basement-specific headroom, damp-environment durability, and…","target_buyer":"Seniors who need safe access to laundry rooms, storage areas, workshops, or living spaces located below the main floor","topic":{"base_category":"Stairlifts","category_criteria":["Rail fit on steep stairs","low-ceiling clearance","damp-environment durability","obstruction sensors","seat belt comfort","battery backup","service access","installation price"],"geography":"United States","slug":"best-stairlifts-for-basement-stairs","title":"Best Stairlifts for Basement Stairs","use_case":"Basement Access & Utility Stairs"}}