Triple
T20368559
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Bulgarian rail network |
E496982
|
entity |
| Predicate | hasMainAxis |
P43001
|
FINISHED |
| Object | Sofia–Plovdiv–Burgas line |
—
|
NE NERFINISHED |
How this triple was built (2 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–Plovdiv–Burgas line | Statement: [Bulgarian rail network, hasMainAxis, Sofia–Plovdiv–Burgas line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sofia–Plovdiv–Burgas line Context triple: [Bulgarian rail network, hasMainAxis, Sofia–Plovdiv–Burgas line]
-
A.
Sofia–Plovdiv railway line
chosen
The Sofia–Plovdiv railway line is a major Bulgarian rail corridor linking the capital Sofia with the city of Plovdiv and serving as part of an important trans-European transport route.
-
B.
Varna–Sofia transport axis
The Varna–Sofia transport axis is a major Bulgarian transportation corridor linking the Black Sea port city of Varna with the capital Sofia and serving as a key route for regional trade and travel.
-
C.
Sofia–Kulata railway line
The Sofia–Kulata railway line is a major rail route in southwestern Bulgaria that connects the capital Sofia with the Greek border near Kulata, serving as an important international transport corridor.
-
D.
Sofia–Mezdra railway line
The Sofia–Mezdra railway line is a key Bulgarian rail route connecting the capital Sofia with the town of Mezdra through the scenic Iskar Gorge.
-
E.
Belgrade–Niš–Sofia railway line
The Belgrade–Niš–Sofia railway line is a major international rail corridor connecting Serbia’s capital Belgrade with the city of Niš and onward to Bulgaria’s capital Sofia, serving as a key transport route between Central and Southeastern Europe.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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.