Athens–Thessaloniki railway
E1023988
The Athens–Thessaloniki railway is Greece’s principal north–south mainline route, connecting the capital Athens with the northern port city of Thessaloniki and serving major intermediate cities along the way.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Piraeus–Platy railway | 2 |
| Athens–Thessaloniki corridor | 1 |
| Athens–Thessaloniki railway canonical | 1 |
| Piraeus–Thessaloniki railway line | 1 |
| σιδηροδρομική γραμμή Αθήνας–Θεσσαλονίκης | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13154070 — 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: Athens–Thessaloniki railway Context triple: [Katerini, railwayLine, Athens–Thessaloniki railway]
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A.
Patras–Athens railway line
The Patras–Athens railway line is a major rail corridor in Greece connecting the port city of Patras in the Peloponnese with the capital city of Athens, serving as a key route for both passenger and freight transport.
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B.
Athens–Corinth railway line
The Athens–Corinth railway line is a major rail corridor in Greece connecting the capital Athens with the city of Corinth and serving as a key part of the country’s mainline rail network.
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C.
Paleofarsalos–Kalambaka railway line
The Paleofarsalos–Kalambaka railway line is a regional rail route in Thessaly, Greece, connecting the mainline network at Paleofarsalos with the town of Kalambaka near the Meteora rock formations.
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D.
railway line Skopje–Thessaloniki
The railway line Skopje–Thessaloniki is an international rail route connecting North Macedonia’s capital Skopje with the Greek port city of Thessaloniki, serving as a key transport corridor in the Balkans.
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E.
Belgrade–Niš–Sofia railway line
The Belgrade–Niš–Sofia railway line is a major international rail corridor connecting Serbia’s capital Belgrade with the city of Niš and onward to Bulgaria’s capital Sofia, serving as a key transport route between Central and Southeastern Europe.
- 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: Athens–Thessaloniki railway Target entity description: The Athens–Thessaloniki railway is Greece’s principal north–south mainline route, connecting the capital Athens with the northern port city of Thessaloniki and serving major intermediate cities along the way.
-
A.
Patras–Athens railway line
The Patras–Athens railway line is a major rail corridor in Greece connecting the port city of Patras in the Peloponnese with the capital city of Athens, serving as a key route for both passenger and freight transport.
-
B.
Athens–Corinth railway line
The Athens–Corinth railway line is a major rail corridor in Greece connecting the capital Athens with the city of Corinth and serving as a key part of the country’s mainline rail network.
-
C.
Paleofarsalos–Kalambaka railway line
The Paleofarsalos–Kalambaka railway line is a regional rail route in Thessaly, Greece, connecting the mainline network at Paleofarsalos with the town of Kalambaka near the Meteora rock formations.
-
D.
railway line Skopje–Thessaloniki
The railway line Skopje–Thessaloniki is an international rail route connecting North Macedonia’s capital Skopje with the Greek port city of Thessaloniki, serving as a key transport corridor in the Balkans.
-
E.
Belgrade–Niš–Sofia railway line
The Belgrade–Niš–Sofia railway line is a major international rail corridor connecting Serbia’s capital Belgrade with the city of Niš and onward to Bulgaria’s capital Sofia, serving as a key transport route between Central and Southeastern Europe.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
main line railway
ⓘ
railway line ⓘ |
| connects |
Athens
NERFINISHED
ⓘ
Thessaloniki NERFINISHED ⓘ |
| connectsToPort |
Port of Piraeus via Piraeus–Athens section
ⓘ
Port of Thessaloniki NERFINISHED ⓘ |
| connectsUrbanArea |
Athens metropolitan area
NERFINISHED
ⓘ
Thessaloniki metropolitan area NERFINISHED ⓘ |
| country | Greece ⓘ |
| electrification | 25 kV AC 50 Hz overhead line ⓘ |
| endPoint | Thessaloniki railway station NERFINISHED ⓘ |
| function |
freight transport
ⓘ
passenger transport ⓘ |
| gauge | standard gauge ⓘ |
| hasBridgeOrTunnel | multiple tunnels and bridges along route ⓘ |
| hasServiceType |
intercity rail
ⓘ
suburban rail on some sections ⓘ |
| hasUpgrade | high-speed sections between Athens and Thessaloniki ⓘ |
| historicalRole | principal rail link between southern and northern Greece ⓘ |
| importance | backbone of Greek long-distance rail services ⓘ |
| infrastructureManager | OSE (Hellenic Railways Organisation) NERFINISHED ⓘ |
| isMainAxis | north–south rail corridor of Greece ⓘ |
| isPartOfNetwork | Greek railway network NERFINISHED ⓘ |
| isRouteOf |
Athens–Thessaloniki InterCity trains
NERFINISHED
ⓘ
Athens–Thessaloniki high-speed services NERFINISHED ⓘ |
| locatedIn | Greek mainland ⓘ |
| maximumSpeedClass | up to approximately 200 km/h on upgraded sections ⓘ |
| operator | Hellenic Train NERFINISHED ⓘ |
| owner | Hellenic Railways Organisation NERFINISHED ⓘ |
| partOf | Piraeus–Platy railway NERFINISHED ⓘ |
| servesCity |
Athens
NERFINISHED
ⓘ
Katerini NERFINISHED ⓘ Lamia NERFINISHED ⓘ Larissa NERFINISHED ⓘ Thessaloniki NERFINISHED ⓘ |
| servesRegion |
Central Greece
NERFINISHED
ⓘ
Central Macedonia NERFINISHED ⓘ Thessaly NERFINISHED ⓘ |
| startPoint | Athens railway station NERFINISHED ⓘ |
| status | in operation ⓘ |
| terminus |
Athens
NERFINISHED
ⓘ
Thessaloniki NERFINISHED ⓘ |
| trackConfiguration | double 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: Athens–Thessaloniki railway Description of subject: The Athens–Thessaloniki railway is Greece’s principal north–south mainline route, connecting the capital Athens with the northern port city of Thessaloniki and serving major intermediate cities along the way.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Piraeus–Platy railway
this entity surface form:
Athens–Thessaloniki corridor
this entity surface form:
Piraeus–Thessaloniki railway line
this entity surface form:
σιδηροδρομική γραμμή Αθήνας–Θεσσαλονίκης
this entity surface form:
Piraeus–Platy railway