Tehran Metro Line 1
E736420
Tehran Metro Line 1 is the main north–south rapid transit line in Tehran’s metro system, running through many of the city’s central and densely populated areas.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tehran Metro Line 1 canonical | 7 |
| Tehran Metro Line 1 north–south corridor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8048317 — 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 Metro Line 1 Context triple: [Line 6 (Tehran Metro), connectsWith, Tehran Metro Line 1]
-
A.
Tehran Metro Line 2
Tehran Metro Line 2 is a major east–west rapid transit line in Tehran’s metro system, serving numerous central and western districts and providing key transfer connections with several other lines.
-
B.
Tehran Metro
Tehran Metro is the rapid transit system serving Iran’s capital, providing extensive urban and suburban rail transport across the Tehran metropolitan area.
-
C.
Tehran Metro Line 3
Tehran Metro Line 3 is a major north–south rapid transit line in Tehran’s metro network, serving as one of the city’s key high-capacity urban rail corridors.
-
D.
Tehran Metro Line 6
Tehran Metro Line 6 is a major north–south and east–west rapid transit line in Tehran’s urban rail network, designed to improve connectivity across central and peripheral districts of Iran’s capital.
-
E.
Tehran Metro Line 9
Tehran Metro Line 9 is a planned rapid transit line intended to expand and improve the urban rail network in Iran’s capital, Tehran.
- 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 Metro Line 1 Target entity description: Tehran Metro Line 1 is the main north–south rapid transit line in Tehran’s metro system, running through many of the city’s central and densely populated areas.
-
A.
Tehran Metro Line 2
Tehran Metro Line 2 is a major east–west rapid transit line in Tehran’s metro system, serving numerous central and western districts and providing key transfer connections with several other lines.
-
B.
Tehran Metro
Tehran Metro is the rapid transit system serving Iran’s capital, providing extensive urban and suburban rail transport across the Tehran metropolitan area.
-
C.
Tehran Metro Line 3
Tehran Metro Line 3 is a major north–south rapid transit line in Tehran’s metro network, serving as one of the city’s key high-capacity urban rail corridors.
-
D.
Tehran Metro Line 6
Tehran Metro Line 6 is a major north–south and east–west rapid transit line in Tehran’s urban rail network, designed to improve connectivity across central and peripheral districts of Iran’s capital.
-
E.
Tehran Metro Line 9
Tehran Metro Line 9 is a planned rapid transit line intended to expand and improve the urban rail network in Iran’s capital, Tehran.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | metro line ⓘ |
| connects |
northern Tehran
ⓘ
southern Tehran ⓘ |
| country | Iran ⓘ |
| electrification | 750 V DC third rail ⓘ |
| hasColor | red ⓘ |
| hasDailyRidership | high ⓘ |
| hasDirection | north–south ⓘ |
| hasFareSystem | Tehran Metro unified fare system ⓘ |
| hasInterchangeWith |
Tehran Metro Line 2
NERFINISHED
ⓘ
Tehran Metro Line 3 NERFINISHED ⓘ Tehran Metro Line 4 NERFINISHED ⓘ Tehran Metro Line 5 NERFINISHED ⓘ |
| hasNumberOfTracks | 2 ⓘ |
| hasRollingStockType | electric multiple units ⓘ |
| hasStation |
Ali Abad Station
NERFINISHED
ⓘ
Darvazeh Dowlat Station NERFINISHED ⓘ Ghaem Magham Farahani Station NERFINISHED ⓘ Javanmard-e Ghassab Station NERFINISHED ⓘ Kahrizak Station NERFINISHED ⓘ Khazaneh Station NERFINISHED ⓘ Mirdamad Station NERFINISHED ⓘ Mosalla-ye Emam Khomeini Station NERFINISHED ⓘ Panzdah-e Khordad Station NERFINISHED ⓘ Saadi Station NERFINISHED ⓘ Shahid Beheshti Station NERFINISHED ⓘ Shahid Haghani Station NERFINISHED ⓘ Shahid Hemmat Station NERFINISHED ⓘ Shahr-e Rey Station NERFINISHED ⓘ Tajrish Station NERFINISHED ⓘ |
| hasTerminus |
Kahrizak Station
NERFINISHED
ⓘ
Tajrish Station NERFINISHED ⓘ |
| hasTrackGauge | standard gauge ⓘ |
| hasTypeOfService | urban rapid transit ⓘ |
| isBackboneOf | Tehran public transport network NERFINISHED ⓘ |
| isMajorAxisOf | Tehran Metro network NERFINISHED ⓘ |
| locatedIn |
Iran
NERFINISHED
ⓘ
Tehran ⓘ |
| openedInPart | 2001 ⓘ |
| operator | Tehran Urban and Suburban Railways Organization NERFINISHED ⓘ |
| partOf | Tehran Metro NERFINISHED ⓘ |
| passesThrough |
commercial districts of Tehran
ⓘ
historical center of Tehran ⓘ |
| servesArea |
central Tehran
ⓘ
densely populated areas of Tehran ⓘ |
| system | Tehran Metro NERFINISHED ⓘ |
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 Metro Line 1 Description of subject: Tehran Metro Line 1 is the main north–south rapid transit line in Tehran’s metro system, running through many of the city’s central and densely populated areas.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Line 6 (Tehran Metro)
this entity surface form:
Tehran Metro Line 1 north–south corridor