{"citations":{"source_mix":{"company_owned":17,"independent":15,"unclear":0},"sources_referenced_by_questions":0,"support_mix":{"direct":27,"partial":5},"total_sources":32,"unique_domain_count":17},"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","google","grok","kimi","openai","perplexity"],"predicate":"final_consensus_rank","qualifier":"Compact & Narrow Stairways","subject":"Stannah Starla","unit":"rank","value":2},{"claim_id":"claim-003","confidence":"verified","observed_at":"2026-09-26","platform_support":["anthropic","google","grok","kimi","openai","perplexity"],"predicate":"platform_mentions","qualifier":"out of 7","subject":"Stannah Starla","unit":"platforms","value":6},{"claim_id":"claim-004","confidence":"verified","observed_at":"2026-09-26","platform_support":["openai","anthropic","perplexity","google"],"predicate":"fit_rating_count","qualifier":"good","subject":"Stannah Starla","unit":"platforms","value":4},{"claim_id":"claim-005","confidence":"verified","observed_at":"2026-09-26","platform_support":["deepseek","grok","kimi"],"predicate":"fit_rating_count","qualifier":"mixed","subject":"Stannah Starla","unit":"platforms","value":3}],"content_scope":"aggregated facts, computed metrics, and retrieval summaries","entities":[{"average_rank":3.8333333333333335,"best_rank":2,"entity_id":"entity-001","entity_type":"company","final_rank":2,"name":"Stannah Starla","platform_mentions":6,"platform_share":0.8571428571428571}],"identity":{"dataset_url":"https://aginginplaceindex.com/datasets/stairlifts/compact-narrow-stairways/stannah-starla.json","page_url":"https://aginginplaceindex.com/stairlifts/compact-narrow-stairways/stannah-starla","report_type":"fit_review","study_id":"AIPI-STUDY-627AF5D66038","title":"Stannah Starla 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.","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 11:10:52.781256+00","research_date":"2026-09-26","source_snapshot_sha256":"e398b6117759a54d3e2406da8de7cc48fd5a9d1d873c303c9f266a4996721c81","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":19,"qualified_finalists":7,"ranking_unit":"Stairlift model and manufacturer"},"schema_version":4,"summary":"Stannah Starla is a good — but not guaranteed — fit for compact and narrow stairways. Six of the seven platforms in this study named Stannah Starla during the ranking stage, and four of seven rated it \"good\" for this use case while three rated it \"mixed.\" The strongest reason to consider it is its fold-away seated design: Stannah lists a minimum folded width of 13.3 inches for straight stairs and 16 inches for stairs with turns, plus foldable arms and a powered folding footrest intended to keep the stairway open when parked . The main limitation is that published minimum-width figures…","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"}}