Triple

T12415733
Position Surface form Disambiguated ID Type / Status
Subject Tarnovo Literary School E296630 entity
Predicate flourishedDuringReignOf P45610 FINISHED
Object Tsar Ivan Alexander of Bulgaria
Tsar Ivan Alexander of Bulgaria was a 14th-century Bulgarian ruler known for presiding over a cultural and literary revival that marked one of the last great flourishing periods of the medieval Bulgarian Empire.
 E1072942 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Tsar Ivan Alexander of Bulgaria | Statement: [Tarnovo Literary School, flourishedDuringReignOf, Tsar Ivan Alexander of Bulgaria]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tsar Ivan Alexander of Bulgaria
Context triple: [Tarnovo Literary School, flourishedDuringReignOf, Tsar Ivan Alexander of Bulgaria]
  • A. Alexander I of Bulgaria
    Alexander I of Bulgaria was the first modern ruler of an autonomous Bulgaria after Ottoman rule, reigning as prince from 1879 to 1886 during the formative years of the Bulgarian state.
  • B. Peter IV of Bulgaria
    Peter IV of Bulgaria was a medieval Bulgarian tsar who played a key role in the restoration of Bulgarian independence and the establishment of the Second Bulgarian Empire in the late 12th century.
  • C. Ivan Asen IV of Bulgaria
    Ivan Asen IV of Bulgaria was a 14th-century Bulgarian prince of the Second Bulgarian Empire, known primarily as a son of Tsar Ivan Alexander who died fighting the Ottoman Turks.
  • D. Ivan Vladislav of Bulgaria
    Ivan Vladislav of Bulgaria was the last Tsar of the First Bulgarian Empire, known for his fierce resistance against Byzantine expansion before the empire’s eventual fall in 1018.
  • E. Peter I of Bulgaria
    Peter I of Bulgaria was a 10th-century tsar of the First Bulgarian Empire known for his long and relatively peaceful reign, during which Bulgaria strengthened its Christianity and diplomatic ties with Byzantium.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Tsar Ivan Alexander of Bulgaria
Triple: [Tarnovo Literary School, flourishedDuringReignOf, Tsar Ivan Alexander of Bulgaria]
Generated description
Tsar Ivan Alexander of Bulgaria was a 14th-century Bulgarian ruler known for presiding over a cultural and literary revival that marked one of the last great flourishing periods of the medieval Bulgarian Empire.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Tsar Ivan Alexander of Bulgaria
Target entity description: Tsar Ivan Alexander of Bulgaria was a 14th-century Bulgarian ruler known for presiding over a cultural and literary revival that marked one of the last great flourishing periods of the medieval Bulgarian Empire.
  • A. Alexander I of Bulgaria
    Alexander I of Bulgaria was the first modern ruler of an autonomous Bulgaria after Ottoman rule, reigning as prince from 1879 to 1886 during the formative years of the Bulgarian state.
  • B. Peter IV of Bulgaria
    Peter IV of Bulgaria was a medieval Bulgarian tsar who played a key role in the restoration of Bulgarian independence and the establishment of the Second Bulgarian Empire in the late 12th century.
  • C. Ivan Asen IV of Bulgaria
    Ivan Asen IV of Bulgaria was a 14th-century Bulgarian prince of the Second Bulgarian Empire, known primarily as a son of Tsar Ivan Alexander who died fighting the Ottoman Turks.
  • D. Ivan Vladislav of Bulgaria
    Ivan Vladislav of Bulgaria was the last Tsar of the First Bulgarian Empire, known for his fierce resistance against Byzantine expansion before the empire’s eventual fall in 1018.
  • E. Peter I of Bulgaria
    Peter I of Bulgaria was a 10th-century tsar of the First Bulgarian Empire known for his long and relatively peaceful reign, during which Bulgaria strengthened its Christianity and diplomatic ties with Byzantium.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69d6ad9f464c81909db36d7e96e34b9e completed April 8, 2026, 7:33 p.m.
NER Named-entity recognition batch_69d94d6c4f6c8190bc99d3f7b64205c3 completed April 10, 2026, 7:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69fbac73848481909303e833041ebc90 completed May 6, 2026, 9:02 p.m.
NEDg Description generation batch_69fbae8f83f481909ac16d4bb66ea79d completed May 6, 2026, 9:11 p.m.
NED2 Entity disambiguation (via description) batch_69fbaf71ad648190b9128851ba62590e completed May 6, 2026, 9:15 p.m.
Created at: April 8, 2026, 9:55 p.m.