{"citations":{"source_mix":{"company_owned":23,"independent":15,"unclear":2},"sources_referenced_by_questions":0,"support_mix":{"direct":34,"partial":6},"total_sources":40,"unique_domain_count":24},"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":["deepseek","openai"],"predicate":"final_consensus_rank","qualifier":"Compact & Narrow Stairways","subject":"Savaria K2 Stairlift","unit":"rank","value":7},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-26","platform_support":["deepseek","openai"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Savaria K2 Stairlift","unit":"platforms","value":2},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-26","platform_support":["grok"],"predicate":"fit_rating_count","qualifier":"strong","subject":"Savaria K2 Stairlift","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":"Savaria K2 Stairlift","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":"Savaria K2 Stairlift","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":"Savaria K2 Stairlift","unit":"platforms","value":1}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":3,"best_rank":1,"entity_id":"entity-001","entity_type":"company","final_rank":7,"name":"Savaria K2 Stairlift","platform_mentions":2,"platform_share":0.2857142857142857}],"identity":{"dataset_url":"https://aginginplaceindex.com/datasets/stairlifts/compact-narrow-stairways/savaria-k2-stairlift.json","page_url":"https://aginginplaceindex.com/stairlifts/compact-narrow-stairways/savaria-k2-stairlift","report_type":"fit_review","study_id":"AIPI-STUDY-762DC8813AFD","title":"Savaria K2 Stairlift 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.","Company-owned citations materially outnumber independent citations; do not describe company claims as independently verified.","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":"2026-09-26 11:15:52.345217+00","research_date":"2026-09-26","source_snapshot_sha256":"eab7489a6ed03bc7395bf4b77df664e8f90899c1073254e9599f5c403abb960c","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":19,"qualified_finalists":7,"ranking_unit":"Stairlift model and manufacturer"},"schema_version":4,"summary":"The Savaria K2 Stairlift is a good — but not guaranteed — fit for compact and narrow stairways. Two of the seven platforms in this study named it during the ranking stage (deepseek and openai), giving it a 28.6% share of included platform responses, an average listed rank of 3.0, and a best listed rank of 1. Its strongest advantage is a published 10.75-inch folded L-seat profile, which Savaria explicitly markets for Narrow Staircases (, -2). The main limitation is that no verified universal minimum staircase width exists for the K2, so sub-30-inch stairways require an on-site dealer…","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"}}