Triple

T20495123
Position Surface form Disambiguated ID Type / Status
Subject David of Trebizond E502850 entity
Predicate notableEvent P259 FINISHED
Object Ottoman conquest of Trebizond
The Ottoman conquest of Trebizond in 1461 was the campaign by Sultan Mehmed II that captured the last major Byzantine successor state on the Black Sea, ending the Empire of Trebizond and fully consolidating Ottoman control over Anatolia’s northern coast.
E1434889 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: Ottoman conquest of Trebizond | Statement: [David of Trebizond, notableEvent, Ottoman conquest of Trebizond]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ottoman conquest of Trebizond
Context triple: [David of Trebizond, notableEvent, Ottoman conquest of Trebizond]
  • A. Ottoman conquest of the Duchy of Athens
    The Ottoman conquest of the Duchy of Athens was the mid-15th-century campaign in which the Ottoman Empire captured and annexed the Latin-ruled Duchy of Athens, bringing much of central Greece under Ottoman control.
  • B. Ottoman capture of Nicomedia
    The Ottoman capture of Nicomedia was a key early 14th-century conquest in northwestern Anatolia that helped establish Ottoman control over former Byzantine territories and paved the way for their expansion into Europe.
  • C. Ottoman conquest of Constantinople
    The Ottoman conquest of Constantinople in 1453 was the decisive siege in which Sultan Mehmed II captured the Byzantine capital, ending the Byzantine Empire and transforming the city into the Ottoman imperial center of Istanbul.
  • D. Ottoman conquest of Caffa
    The Ottoman conquest of Caffa was a 1475 military campaign in which the Ottoman Empire seized the key Black Sea port of Caffa from Genoese control, marking the end of Genoese dominance in Crimea and strengthening Ottoman influence in the region.
  • E. Ottoman conquest of Lesbos
    The Ottoman conquest of Lesbos was the 1462 military campaign in which the Ottoman Empire seized the island of Lesbos, including its stronghold at Mytilene, from the Genoese Gattilusio rulers, consolidating Ottoman control over the northeastern Aegean.
  • 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: Ottoman conquest of Trebizond
Triple: [David of Trebizond, notableEvent, Ottoman conquest of Trebizond]
Generated description
The Ottoman conquest of Trebizond in 1461 was the campaign by Sultan Mehmed II that captured the last major Byzantine successor state on the Black Sea, ending the Empire of Trebizond and fully consolidating Ottoman control over Anatolia’s northern coast.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ottoman conquest of Trebizond
Target entity description: The Ottoman conquest of Trebizond in 1461 was the campaign by Sultan Mehmed II that captured the last major Byzantine successor state on the Black Sea, ending the Empire of Trebizond and fully consolidating Ottoman control over Anatolia’s northern coast.
  • A. Ottoman conquest of the Duchy of Athens
    The Ottoman conquest of the Duchy of Athens was the mid-15th-century campaign in which the Ottoman Empire captured and annexed the Latin-ruled Duchy of Athens, bringing much of central Greece under Ottoman control.
  • B. Ottoman capture of Nicomedia
    The Ottoman capture of Nicomedia was a key early 14th-century conquest in northwestern Anatolia that helped establish Ottoman control over former Byzantine territories and paved the way for their expansion into Europe.
  • C. Ottoman conquest of Constantinople
    The Ottoman conquest of Constantinople in 1453 was the decisive siege in which Sultan Mehmed II captured the Byzantine capital, ending the Byzantine Empire and transforming the city into the Ottoman imperial center of Istanbul.
  • D. Ottoman conquest of Caffa
    The Ottoman conquest of Caffa was a 1475 military campaign in which the Ottoman Empire seized the key Black Sea port of Caffa from Genoese control, marking the end of Genoese dominance in Crimea and strengthening Ottoman influence in the region.
  • E. Ottoman conquest of Lesbos
    The Ottoman conquest of Lesbos was the 1462 military campaign in which the Ottoman Empire seized the island of Lesbos, including its stronghold at Mytilene, from the Genoese Gattilusio rulers, consolidating Ottoman control over the northeastern Aegean.
  • 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_69e0b4b0373881909dd3e9387f82eab4 completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e69cbd2dfc81908204f7bfa8a763b6 completed April 20, 2026, 9:38 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0893b8a86081908783a9b8cf2dc485 completed May 16, 2026, 3:56 p.m.
NEDg Description generation batch_6a08962f4e3881908df0bb55b6239c86 completed May 16, 2026, 4:07 p.m.
NED2 Entity disambiguation (via description) batch_6a0896b417bc8190963b69f84ea0e3c8 completed May 16, 2026, 4:09 p.m.
Created at: April 16, 2026, 11:35 a.m.