Tehran–Tabriz railway
E361569
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tehran–Tabriz railway canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3477973 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tehran–Tabriz railway Context triple: [Qazvin, connectedBy, Tehran–Tabriz railway]
-
A.
Trans-Iranian Railway
The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
-
B.
Tehran–Karaj corridor
The Tehran–Karaj corridor is a major urban and transportation axis linking Iran’s capital Tehran with the nearby city of Karaj, forming one of the country’s most densely populated and heavily traveled metropolitan regions.
-
C.
Trans-Caspian Railway
The Trans-Caspian Railway is a historic rail line in Central Asia that formed a key part of the Russian Empire’s and later the Soviet Union’s transportation network across the region.
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D.
Tehran–Mashhad highway
The Tehran–Mashhad highway is a major Iranian roadway linking the capital Tehran with the northeastern city of Mashhad, serving as a key route for both domestic travel and religious pilgrimage.
-
E.
Transcaucasian Railway
The Transcaucasian Railway was a major railway network of the Russian Empire and later the Soviet Union that connected key cities and ports across the South Caucasus region.
- 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: Tehran–Tabriz railway Target entity description: 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.
-
A.
Trans-Iranian Railway
The Trans-Iranian Railway is a historic north–south rail line completed in the 1930s that links the Persian Gulf to the Caspian Sea, playing a crucial role in Iran’s transportation network and in Allied logistics during World War II.
-
B.
Tehran–Karaj corridor
The Tehran–Karaj corridor is a major urban and transportation axis linking Iran’s capital Tehran with the nearby city of Karaj, forming one of the country’s most densely populated and heavily traveled metropolitan regions.
-
C.
Trans-Caspian Railway
The Trans-Caspian Railway is a historic rail line in Central Asia that formed a key part of the Russian Empire’s and later the Soviet Union’s transportation network across the region.
-
D.
Tehran–Mashhad highway
The Tehran–Mashhad highway is a major Iranian roadway linking the capital Tehran with the northeastern city of Mashhad, serving as a key route for both domestic travel and religious pilgrimage.
-
E.
Transcaucasian Railway
The Transcaucasian Railway was a major railway network of the Russian Empire and later the Soviet Union that connected key cities and ports across the South Caucasus region.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
rail transport corridor
ⓘ
railway line ⓘ |
| connectsCity |
Tabriz
ⓘ
Tehran ⓘ |
| connectsRegion |
central Iran
ⓘ
northwestern Iran ⓘ |
| connectsTo | international rail routes via Tabriz ⓘ |
| country | Iran ⓘ |
| electrification | partly non‑electrified ⓘ |
| function | key national transport corridor ⓘ |
| gauge | standard gauge ⓘ |
| hasService |
freight trains
ⓘ
intercity passenger trains ⓘ |
| importance | major route for trade with northwestern neighbors ⓘ |
| infrastructureType | heavy rail ⓘ |
| locatedIn | Iran ⓘ |
| operator | Islamic Republic of Iran Railways ⓘ |
| owner | Islamic Republic of Iran Railways ⓘ |
| partOf | Iranian railway network ⓘ |
| passesThrough |
Alborz Province
NERFINISHED
ⓘ
East Azerbaijan Province ⓘ Qazvin ⓘ Tehran Province ⓘ Zanjan ⓘ Zanjan Province NERFINISHED ⓘ |
| status | in operation ⓘ |
| terminusA | Tehran ⓘ |
| terminusB | Tabriz ⓘ |
| use |
freight transport
ⓘ
passenger transport ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Tehran–Tabriz railway Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Qazvin