Helsinki–Lahti line
E520639
The Helsinki–Lahti line is a major Finnish railway route that serves as the country’s primary high-speed corridor between the capital region and eastern Finland.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Helsinki–Lahti line canonical | 1 |
| Helsinki–Lahti railway | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5441862 — 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: Helsinki–Lahti line Context triple: [Finnish railway network, hasHighSpeedSection, Helsinki–Lahti line]
-
A.
Helsinki–Riihimäki railway
The Helsinki–Riihimäki railway is a major Finnish rail line forming part of the main route north from Helsinki, serving numerous commuter and long-distance trains.
-
B.
Stockholm–Uppsala railway corridor
The Stockholm–Uppsala railway corridor is a major rail line in eastern Sweden that connects the capital city Stockholm with the university city of Uppsala, serving as a key commuter and intercity transport route.
-
C.
Södertälje line
The Södertälje line is a Swedish railway route in the Stockholm area that connects several southern suburbs and towns, including Tumba, with Södertälje and the broader regional rail network.
-
D.
Bergslagen Line
The Bergslagen Line is a Swedish railway route running through the historic Bergslagen mining and industrial region, connecting several towns in central Sweden.
-
E.
Ostkustbanan railway line
The Ostkustbanan railway line is a major Swedish rail route running along the country’s east coast, connecting Stockholm with northern regions and serving numerous municipalities along the way.
- 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: Helsinki–Lahti line Target entity description: The Helsinki–Lahti line is a major Finnish railway route that serves as the country’s primary high-speed corridor between the capital region and eastern Finland.
-
A.
Helsinki–Riihimäki railway
The Helsinki–Riihimäki railway is a major Finnish rail line forming part of the main route north from Helsinki, serving numerous commuter and long-distance trains.
-
B.
Stockholm–Uppsala railway corridor
The Stockholm–Uppsala railway corridor is a major rail line in eastern Sweden that connects the capital city Stockholm with the university city of Uppsala, serving as a key commuter and intercity transport route.
-
C.
Södertälje line
The Södertälje line is a Swedish railway route in the Stockholm area that connects several southern suburbs and towns, including Tumba, with Södertälje and the broader regional rail network.
-
D.
Bergslagen Line
The Bergslagen Line is a Swedish railway route running through the historic Bergslagen mining and industrial region, connecting several towns in central Sweden.
-
E.
Ostkustbanan railway line
The Ostkustbanan railway line is a major Swedish rail route running along the country’s east coast, connecting Stockholm with northern regions and serving numerous municipalities along the way.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
high-speed rail corridor
ⓘ
railway line ⓘ |
| connects |
Helsinki
NERFINISHED
ⓘ
Lahti NERFINISHED ⓘ |
| country | Finland ⓘ |
| electrificationSystem | 25 kV AC overhead line ⓘ |
| electrified | yes ⓘ |
| enables | high-speed connections from Helsinki to eastern Finland ⓘ |
| gauge | 1,524 mm ⓘ |
| hasStation |
Helsinki Central railway station
NERFINISHED
ⓘ
Kerava NERFINISHED ⓘ Lahti railway station NERFINISHED ⓘ Pasila NERFINISHED ⓘ Tikkurila NERFINISHED ⓘ |
| locatedIn | Southern Finland NERFINISHED ⓘ |
| operator | VR Group NERFINISHED ⓘ |
| owner | Finnish Transport Infrastructure Agency NERFINISHED ⓘ |
| partOf | Finnish railway network NERFINISHED ⓘ |
| primaryUse |
high-speed passenger services
ⓘ
passenger traffic ⓘ |
| role | primary high-speed corridor between Helsinki region and eastern Finland ⓘ |
| serves |
capital region of Finland
ⓘ
eastern Finland NERFINISHED ⓘ |
| strategicImportance | main rail axis from Helsinki towards eastern Finland ⓘ |
| terminus |
Helsinki
NERFINISHED
ⓘ
Lahti NERFINISHED ⓘ |
| usedBy |
commuter trains
ⓘ
long-distance trains ⓘ |
| usedFor |
Pendolino services
NERFINISHED
ⓘ
intercity services ⓘ |
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: Helsinki–Lahti line Description of subject: The Helsinki–Lahti line is a major Finnish railway route that serves as the country’s primary high-speed corridor between the capital region and eastern Finland.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Helsinki–Lahti railway