Dammam–Riyadh railway line
E788594
The Dammam–Riyadh railway line is a major intercity rail route in Saudi Arabia connecting the eastern coastal city of Dammam with the capital Riyadh, serving as a key corridor for passenger and freight transport.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Dammam–Riyadh railway line canonical | 1 |
| Riyadh–Dammam Railway | 1 |
| Riyadh–Dammam freight line | 1 |
| Riyadh–Dammam passenger line | 1 |
| Riyadh–Hofuf–Dammam passenger line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9269816 — 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: Dammam–Riyadh railway line Context triple: [Saudi Railways Organization, operatedRailwayLine, Dammam–Riyadh railway line]
-
A.
Gulf Cooperation Council railway network
The Gulf Cooperation Council railway network is a planned regional rail system intended to link the six GCC member states with a unified freight and passenger corridor across the Arabian Peninsula.
-
B.
Hejaz Railway
The Hejaz Railway was an early 20th-century Ottoman narrow-gauge railway built to connect Damascus with the holy cities of the Hejaz, notably facilitating Muslim pilgrimage to Medina.
-
C.
Medina–Jeddah highway
The Medina–Jeddah highway is a major road in western Saudi Arabia that connects the holy city of Medina with the Red Sea port city of Jeddah, serving as a key route for pilgrims and regional travel.
-
D.
Medina–Yanbu highway
The Medina–Yanbu highway is a major roadway in western Saudi Arabia that links the inland holy city of Medina with the Red Sea port city of Yanbu, facilitating regional travel and trade.
-
E.
Etihad Rail network
The Etihad Rail network is the United Arab Emirates’ national railway system designed to link key industrial, commercial, and population centers across the country and connect to wider Gulf rail corridors.
- 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: Dammam–Riyadh railway line Target entity description: The Dammam–Riyadh railway line is a major intercity rail route in Saudi Arabia connecting the eastern coastal city of Dammam with the capital Riyadh, serving as a key corridor for passenger and freight transport.
-
A.
Gulf Cooperation Council railway network
The Gulf Cooperation Council railway network is a planned regional rail system intended to link the six GCC member states with a unified freight and passenger corridor across the Arabian Peninsula.
-
B.
Hejaz Railway
The Hejaz Railway was an early 20th-century Ottoman narrow-gauge railway built to connect Damascus with the holy cities of the Hejaz, notably facilitating Muslim pilgrimage to Medina.
-
C.
Medina–Jeddah highway
The Medina–Jeddah highway is a major road in western Saudi Arabia that connects the holy city of Medina with the Red Sea port city of Jeddah, serving as a key route for pilgrims and regional travel.
-
D.
Medina–Yanbu highway
The Medina–Yanbu highway is a major roadway in western Saudi Arabia that links the inland holy city of Medina with the Red Sea port city of Yanbu, facilitating regional travel and trade.
-
E.
Etihad Rail network
The Etihad Rail network is the United Arab Emirates’ national railway system designed to link key industrial, commercial, and population centers across the country and connect to wider Gulf rail corridors.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| cargoType |
containers
ⓘ
general freight ⓘ petrochemical products ⓘ |
| connectsCity |
Dammam
NERFINISHED
ⓘ
Riyadh NERFINISHED ⓘ |
| connectsToPort | King Abdulaziz Port in Dammam NERFINISHED ⓘ |
| constructionStart | 1947 ⓘ |
| country | Saudi Arabia ⓘ |
| electrification | non-electrified ⓘ |
| function | key east–west transport corridor in Saudi Arabia ⓘ |
| gauge | standard gauge ⓘ |
| geographicOrientation | east–west ⓘ |
| hasStation |
Abqaiq railway station
NERFINISHED
ⓘ
Dammam railway station NERFINISHED ⓘ Haradh railway station NERFINISHED ⓘ Hofuf railway station NERFINISHED ⓘ Riyadh railway station NERFINISHED ⓘ |
| historicalSignificance | first major railway in Saudi Arabia ⓘ |
| importance | major corridor for Saudi national economy ⓘ |
| locatedIn | Saudi Arabia ⓘ |
| openedForTraffic | 1951 ⓘ |
| operator | Saudi Arabia Railways NERFINISHED ⓘ |
| owner | Saudi Arabia Railways NERFINISHED ⓘ |
| ownerType | state-owned ⓘ |
| partOf | Saudi national railway network NERFINISHED ⓘ |
| passengerServiceType |
express trains
ⓘ
intercity trains ⓘ |
| primaryUse |
freight transport
ⓘ
passenger transport ⓘ |
| purpose | link Persian Gulf coast with capital Riyadh ⓘ |
| regionServed |
Eastern Province
NERFINISHED
ⓘ
Riyadh Region NERFINISHED ⓘ |
| servesCity |
Abqaiq
NERFINISHED
ⓘ
Dammam NERFINISHED ⓘ Haradh NERFINISHED ⓘ Hofuf NERFINISHED ⓘ Riyadh NERFINISHED ⓘ |
| status | operational ⓘ |
| supervisedBy | Saudi Ministry of Transport NERFINISHED ⓘ |
| terminusA | Dammam NERFINISHED ⓘ |
| terminusB | Riyadh NERFINISHED ⓘ |
| trackConfiguration | single track ⓘ |
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: Dammam–Riyadh railway line Description of subject: The Dammam–Riyadh railway line is a major intercity rail route in Saudi Arabia connecting the eastern coastal city of Dammam with the capital Riyadh, serving as a key corridor for passenger and freight transport.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Riyadh–Dammam passenger line
this entity surface form:
Riyadh–Dammam freight line
this entity surface form:
Riyadh–Dammam Railway
this entity surface form:
Riyadh–Hofuf–Dammam passenger line