{"case_id":"case-01","category":"inline-numbered","answer":"AEO improves the chance that an answer engine can extract a direct answer.[1]","claims":[{"claim_id":"c1","text":"AEO improves extractability","marker_detected":true,"marker_kind":"numeric_inline","marker":"[1]","source_ids":["s1"],"claim_support_label":"supported"}],"sources":[{"source_id":"s1","raw":"https://example.org/aeo-guide"}],"ambiguity":"none"}
{"case_id":"case-02","category":"inline-numbered","answer":"A citation marker can follow punctuation.[2]","claims":[{"claim_id":"c1","text":"A marker follows punctuation","marker_detected":true,"marker_kind":"numeric_inline","marker":"[2]","source_ids":["s1"],"claim_support_label":"supported"}],"sources":[{"source_id":"s1","raw":"https://example.org/markers"}],"ambiguity":"none"}
{"case_id":"case-03","category":"inline-numbered","answer":"A source may be cited twice.[3] Later, the same source is cited again.[3]","claims":[{"claim_id":"c1","text":"A source may be cited twice","marker_detected":true,"marker_kind":"numeric_inline","marker":"[3]","source_ids":["s1"],"claim_support_label":"supported"},{"claim_id":"c2","text":"The same source is cited again","marker_detected":true,"marker_kind":"numeric_inline_repeated","marker":"[3]","source_ids":["s1"],"claim_support_label":"supported"}],"sources":[{"source_id":"s1","raw":"https://example.org/repeat"}],"ambiguity":"repeated_marker_is_not_new_source"}
{"case_id":"case-04","category":"inline-numbered","answer":"Two claims share one citation: concise answers help extraction and reduce review time.[4]","claims":[{"claim_id":"c1","text":"Concise answers help extraction","marker_detected":true,"marker_kind":"numeric_inline","marker":"[4]","source_ids":["s1"],"claim_support_label":"supported"},{"claim_id":"c2","text":"Concise answers reduce review time","marker_detected":true,"marker_kind":"numeric_inline_group_scope","marker":"[4]","source_ids":["s1"],"claim_support_label":"insufficient"}],"sources":[{"source_id":"s1","raw":"https://example.org/concise"}],"ambiguity":"one_marker_two_claims"}
{"case_id":"case-05","category":"grouped-markers","answer":"Structured fields improve auditability.[5, 6]","claims":[{"claim_id":"c1","text":"Structured fields improve auditability","marker_detected":true,"marker_kind":"numeric_group","marker":"[5, 6]","source_ids":["s1","s2"],"claim_support_label":"supported"}],"sources":[{"source_id":"s1","raw":"https://example.org/fields"},{"source_id":"s2","raw":"https://example.org/audits"}],"ambiguity":"none"}
{"case_id":"case-06","category":"grouped-markers","answer":"A parser should retain marker order.[7, 8, 9]","claims":[{"claim_id":"c1","text":"A parser should retain marker order","marker_detected":true,"marker_kind":"numeric_group","marker":"[7, 8, 9]","source_ids":["s1","s2","s3"],"claim_support_label":"insufficient"}],"sources":[{"source_id":"s1","raw":"https://example.org/order"},{"source_id":"s2","raw":"https://example.org/order-2"},{"source_id":"s3","raw":"https://example.org/order-3"}],"ambiguity":"support_requires_claim_level_review"}
{"case_id":"case-07","category":"grouped-markers","answer":"The method is documented by sources 10–12.[10–12]","claims":[{"claim_id":"c1","text":"The method is documented by a source range","marker_detected":true,"marker_kind":"numeric_range","marker":"[10–12]","source_ids":["s10","s11","s12"],"claim_support_label":"supported"}],"sources":[{"source_id":"s10","raw":"https://example.org/10"},{"source_id":"s11","raw":"https://example.org/11"},{"source_id":"s12","raw":"https://example.org/12"}],"ambiguity":"range_expansion_is_parser_policy"}
{"case_id":"case-08","category":"grouped-markers","answer":"Evidence is mixed.[13, 14]","claims":[{"claim_id":"c1","text":"Evidence is mixed","marker_detected":true,"marker_kind":"numeric_group","marker":"[13, 14]","source_ids":["s13","s14"],"claim_support_label":"contradicted"}],"sources":[{"source_id":"s13","raw":"https://example.org/pro"},{"source_id":"s14","raw":"https://example.org/con"}],"ambiguity":"sources_disagree"}
{"case_id":"case-09","category":"footnote","answer":"A review should preserve the observed answer text.¹","claims":[{"claim_id":"c1","text":"A review should preserve observed text","marker_detected":true,"marker_kind":"unicode_footnote","marker":"¹","source_ids":["s1"],"claim_support_label":"supported"}],"sources":[{"source_id":"s1","raw":"https://example.org/preservation"}],"ambiguity":"none"}
{"case_id":"case-10","category":"footnote","answer":"The appendix defines the field. [^field]","claims":[{"claim_id":"c1","text":"The appendix defines the field","marker_detected":true,"marker_kind":"markdown_footnote","marker":"[^field]","source_ids":["s1"],"claim_support_label":"supported"}],"sources":[{"source_id":"s1","raw":"https://example.org/appendix"}],"ambiguity":"footnote_definition_may_be_elsewhere"}
{"case_id":"case-11","category":"footnote","answer":"The rate is only an example.²","claims":[{"claim_id":"c1","text":"The rate is only an example","marker_detected":true,"marker_kind":"unicode_footnote","marker":"²","source_ids":[],"claim_support_label":"insufficient"}],"sources":[],"ambiguity":"marker_without_resolvable_source"}
{"case_id":"case-12","category":"footnote","answer":"The note is attached to a heading.³ Findings follow below.","claims":[{"claim_id":"c1","text":"The note is attached to a heading","marker_detected":true,"marker_kind":"unicode_footnote","marker":"³","source_ids":["s1"],"claim_support_label":"insufficient"}],"sources":[{"source_id":"s1","raw":"https://example.org/note"}],"ambiguity":"scope_boundary_unclear"}
{"case_id":"case-13","category":"source-card","answer":"[Open data guidance](https://example.org/data) says to preserve provenance.","claims":[{"claim_id":"c1","text":"Open data guidance says to preserve provenance","marker_detected":true,"marker_kind":"markdown_link","marker":"https://example.org/data","source_ids":["s1"],"claim_support_label":"supported"}],"sources":[{"source_id":"s1","raw":"https://example.org/data"}],"ambiguity":"link_is_source_pointer_not_number_marker"}
{"case_id":"case-14","category":"source-card","answer":"Source card: Evidence protocol — https://example.org/protocol","claims":[{"claim_id":"c1","text":"Evidence protocol is named","marker_detected":true,"marker_kind":"source_card_url","marker":"https://example.org/protocol","source_ids":["s1"],"claim_support_label":"insufficient"}],"sources":[{"source_id":"s1","raw":"https://example.org/protocol"}],"ambiguity":"card_has_no_claim_scope"}
{"case_id":"case-15","category":"bare-url","answer":"The definition is available at https://example.org/definition.","claims":[{"claim_id":"c1","text":"The definition is available","marker_detected":true,"marker_kind":"bare_url","marker":"https://example.org/definition","source_ids":["s1"],"claim_support_label":"supported"}],"sources":[{"source_id":"s1","raw":"https://example.org/definition"}],"ambiguity":"none"}
{"case_id":"case-16","category":"bare-url","answer":"Read https://example.org/guide and https://example.org/limits before comparing.","claims":[{"claim_id":"c1","text":"Read two pages before comparing","marker_detected":true,"marker_kind":"bare_url_group","marker":"https://example.org/guide; https://example.org/limits","source_ids":["s1","s2"],"claim_support_label":"insufficient"}],"sources":[{"source_id":"s1","raw":"https://example.org/guide"},{"source_id":"s2","raw":"https://example.org/limits"}],"ambiguity":"two_urls_have_unclear_claim_assignment"}
{"case_id":"case-17","category":"malformed-marker","answer":"The result is cited [1, 2.","claims":[{"claim_id":"c1","text":"The result is cited","marker_detected":false,"marker_kind":"malformed_numeric","marker":"[1, 2.","source_ids":[],"claim_support_label":"insufficient"}],"sources":[],"ambiguity":"unclosed_bracket"}
{"case_id":"case-18","category":"malformed-marker","answer":"The result is cited [abc].","claims":[{"claim_id":"c1","text":"The result is cited","marker_detected":false,"marker_kind":"malformed_numeric","marker":"[abc]","source_ids":[],"claim_support_label":"insufficient"}],"sources":[],"ambiguity":"non_numeric_marker"}
{"case_id":"case-19","category":"malformed-marker","answer":"The result is cited [4;].","claims":[{"claim_id":"c1","text":"The result is cited","marker_detected":false,"marker_kind":"malformed_numeric","marker":"[4;]","source_ids":[],"claim_support_label":"insufficient"}],"sources":[],"ambiguity":"invalid_separator"}
{"case_id":"case-20","category":"malformed-marker","answer":"The result is cited [5][6","claims":[{"claim_id":"c1","text":"The result is cited","marker_detected":false,"marker_kind":"malformed_numeric","marker":"[5][6","source_ids":[],"claim_support_label":"insufficient"}],"sources":[],"ambiguity":"second_marker_unclosed"}
{"case_id":"case-21","category":"uncited-claim","answer":"AI answers can change between runs without a citation.","claims":[{"claim_id":"c1","text":"AI answers can change between runs","marker_detected":false,"marker_kind":"none","marker":"","source_ids":[],"claim_support_label":"insufficient"}],"sources":[],"ambiguity":"uncited_claim"}
{"case_id":"case-22","category":"uncited-claim","answer":"This workflow is the best way to audit any brand.","claims":[{"claim_id":"c1","text":"This workflow is the best way to audit any brand","marker_detected":false,"marker_kind":"none","marker":"","source_ids":[],"claim_support_label":"insufficient"}],"sources":[],"ambiguity":"superlative_uncited"}
{"case_id":"case-23","category":"ambiguous-scope","answer":"The report is reproducible. [20] It is also fast.","claims":[{"claim_id":"c1","text":"The report is reproducible","marker_detected":true,"marker_kind":"numeric_inline","marker":"[20]","source_ids":["s1"],"claim_support_label":"supported"},{"claim_id":"c2","text":"The report is fast","marker_detected":true,"marker_kind":"numeric_inline_scope_ambiguous","marker":"[20]","source_ids":["s1"],"claim_support_label":"insufficient"}],"sources":[{"source_id":"s1","raw":"https://example.org/reproducible"}],"ambiguity":"marker_scope_may_stop_at_sentence"}
{"case_id":"case-24","category":"ambiguous-scope","answer":"A source card follows this paragraph. [21] Source: https://example.org/card","claims":[{"claim_id":"c1","text":"A source card follows this paragraph","marker_detected":true,"marker_kind":"numeric_inline_scope_ambiguous","marker":"[21]","source_ids":["s1"],"claim_support_label":"insufficient"}],"sources":[{"source_id":"s1","raw":"https://example.org/card"}],"ambiguity":"marker_may_refer_to_paragraph_or_card"}