Triple
T15136559
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tehran–Tabriz railway |
E361569
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Iranian railway network |
E1040656
|
NE FINISHED |
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: Iranian railway network | Statement: [Tehran–Tabriz railway, partOf, Iranian railway network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Iranian railway network Context triple: [Tehran–Tabriz railway, partOf, Iranian railway network]
-
A.
Iranian railway network
chosen
The Iranian railway network is a nationwide rail transport system that connects major cities, industrial centers, and border crossings across Iran and links the country to regional and international rail corridors.
-
B.
Tehran–Mashhad railway
The Tehran–Mashhad railway is a major Iranian rail line connecting the capital Tehran with the holy city of Mashhad, serving as one of the country’s busiest passenger and freight corridors.
-
C.
Tehran–Tabriz railway
The Tehran–Tabriz railway is a major rail line in Iran that links the capital Tehran with the northwestern city of Tabriz, serving as a key corridor for passenger and freight transport across the country.
-
D.
Tehran–IKIA railway connection
The Tehran–IKIA railway connection is a rail link that connects central Tehran with Imam Khomeini International Airport, providing a direct public transit option for air travelers.
-
E.
Tehran–Karaj suburban rail line
The Tehran–Karaj suburban rail line is a key commuter railway service connecting Iran’s capital Tehran with the nearby city of Karaj, helping to handle heavy daily passenger traffic across the metropolitan corridor.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d85a06450081909c5a14ea9851a15e |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e005b3f6f48190b1ed7c7b28feb7a6 |
completed | April 15, 2026, 9:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69febfea8e3081909551a8e3936c13a6 |
completed | May 9, 2026, 5:02 a.m. |
Created at: April 10, 2026, 3:07 a.m.