Triple

T20368606

Position	Surface form	Disambiguated ID	Type / Status
Subject	Bulgarian State Railways	`E496983`	entity
Predicate	operatesRoute	`P3695`	FINISHED
Object	Sofia–Vidin	`—`	NE NERFINISHED

How this triple was built (3 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: Sofia–Vidin | Statement: [Bulgarian State Railways, operatesRoute, Sofia–Vidin]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Sofia–Vidin
Context triple: [Bulgarian State Railways, operatesRoute, Sofia–Vidin]

A. Sofia–Burgas
Sofia–Burgas is a major intercity railway route in Bulgaria connecting the capital Sofia with the Black Sea city of Burgas.
B. Sofia–Plovdiv
Sofia–Plovdiv is a major intercity railway route in Bulgaria connecting the capital Sofia with the country’s second-largest city, Plovdiv.
C. Vidin
Vidin is a historic city and river port in northwestern Bulgaria on the Danube, known for its medieval fortress and role as a regional center during the Second Bulgarian Empire.
D. Pleven
Pleven is a major city in northern Bulgaria known for its historical significance, particularly the Siege of Pleven during the Russo-Turkish War, and its role as an economic and cultural center in the region.
E. Tarnovo
Tarnovo, often called Veliko Tarnovo, is a historic Bulgarian city famed as a medieval capital and cultural stronghold, known for its dramatic hillside setting and well-preserved architectural heritage.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Sofia–Vidin
Target entity description: Sofia–Vidin is a Bulgarian railway route connecting the capital city Sofia with the northwestern city of Vidin near the Danube River and the Romanian border.

A. Sofia–Burgas
Sofia–Burgas is a major intercity railway route in Bulgaria connecting the capital Sofia with the Black Sea city of Burgas.
B. Sofia–Plovdiv
Sofia–Plovdiv is a major intercity railway route in Bulgaria connecting the capital Sofia with the country’s second-largest city, Plovdiv.
C. Vidin
Vidin is a historic city and river port in northwestern Bulgaria on the Danube, known for its medieval fortress and role as a regional center during the Second Bulgarian Empire.
D. Pleven
Pleven is a major city in northern Bulgaria known for its historical significance, particularly the Siege of Pleven during the Russo-Turkish War, and its role as an economic and cultural center in the region.
E. Tarnovo
Tarnovo, often called Veliko Tarnovo, is a historic Bulgarian city famed as a medieval capital and cultural stronghold, known for its dramatic hillside setting and well-preserved architectural heritage.
F. None of above. chosen

Provenance (2 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_69e0b4a4f9b081908a5a021919c21ccb`	completed	April 16, 2026, 10:06 a.m.
NER	Named-entity recognition	`batch_69e678734b188190bb2c5863023f9f8c`	completed	April 20, 2026, 7:03 p.m.

Created at: April 16, 2026, 11:26 a.m.