Triple
T20067293
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Islamic Republic of Iran Railways |
E499639
|
entity |
| Predicate | hasRoute |
P4374
|
FINISHED |
| Object | Tehran–Mashhad railway 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: Tehran–Mashhad railway line | Statement: [Islamic Republic of Iran Railways, hasRoute, Tehran–Mashhad railway line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tehran–Mashhad railway line Context triple: [Islamic Republic of Iran Railways, hasRoute, Tehran–Mashhad railway line]
-
A.
Tehran–Mashhad railway
chosen
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.
-
B.
Tehran–Khorramshahr railway
The Tehran–Khorramshahr railway is a major Iranian rail line connecting the capital Tehran with the southwestern city and port of Khorramshahr, serving as an important corridor for passenger and freight transport.
-
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.
Dorud–Andimeshk railway
The Dorud–Andimeshk railway is a major Iranian rail line traversing the Zagros Mountains, known for its numerous tunnels, bridges, and scenic yet strategically important route connecting central and southwestern Iran.
-
E.
Mashhad–Sarakhs railway
The Mashhad–Sarakhs railway is an international rail line in northeastern Iran that connects the city of Mashhad to the border town of Sarakhs, serving as a key transit route toward Turkmenistan and Central Asia.
- 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_69da627770948190997f486f9a2e370f |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e66379f2cc81908f13a7b216878f12 |
completed | April 20, 2026, 5:33 p.m. |
Created at: April 11, 2026, 3:39 p.m.