Tartu–Valga railway
E789708
The Tartu–Valga railway is a rail line in Estonia connecting the city of Tartu with the border town of Valga, forming part of an important north–south route toward Latvia.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tartu–Valga railway canonical | 2 |
| Estonian railway network | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9275061 — 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: Tartu–Valga railway Context triple: [Tartu railway station, railwayLine, Tartu–Valga railway]
-
A.
Tallinn–Tartu railway
The Tallinn–Tartu railway is a major rail line in Estonia connecting the capital city Tallinn with the university city of Tartu, serving as one of the country's primary passenger and freight corridors.
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B.
Riga–Tukums railway
The Riga–Tukums railway is a key rail line in Latvia linking the capital Riga with the town of Tukums and serving as an important regional passenger and freight route.
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C.
Riga–Jelgava railway
The Riga–Jelgava railway is a key rail line in Latvia that links the capital city Riga with the nearby city of Jelgava, serving both passenger and freight traffic.
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D.
Riga–Daugavpils railway
The Riga–Daugavpils railway is a major rail line in Latvia that links the capital Riga with the country’s second-largest city, Daugavpils, serving as an important route for both passenger and freight transport.
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E.
Riga–Aizkraukle railway
The Riga–Aizkraukle railway is a key Latvian rail line linking the capital Riga with the town of Aizkraukle and forming part of the country’s main eastbound transport corridor.
- 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: Tartu–Valga railway Target entity description: The Tartu–Valga railway is a rail line in Estonia connecting the city of Tartu with the border town of Valga, forming part of an important north–south route toward Latvia.
-
A.
Tallinn–Tartu railway
The Tallinn–Tartu railway is a major rail line in Estonia connecting the capital city Tallinn with the university city of Tartu, serving as one of the country's primary passenger and freight corridors.
-
B.
Riga–Tukums railway
The Riga–Tukums railway is a key rail line in Latvia linking the capital Riga with the town of Tukums and serving as an important regional passenger and freight route.
-
C.
Riga–Jelgava railway
The Riga–Jelgava railway is a key rail line in Latvia that links the capital city Riga with the nearby city of Jelgava, serving both passenger and freight traffic.
-
D.
Riga–Daugavpils railway
The Riga–Daugavpils railway is a major rail line in Latvia that links the capital Riga with the country’s second-largest city, Daugavpils, serving as an important route for both passenger and freight transport.
-
E.
Riga–Aizkraukle railway
The Riga–Aizkraukle railway is a key Latvian rail line linking the capital Riga with the town of Aizkraukle and forming part of the country’s main eastbound transport corridor.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
rail transport infrastructure
ⓘ
railway line ⓘ |
| connects |
Tartu
ⓘ
Valga ⓘ |
| country | Estonia ⓘ |
| crossesNear |
Estonia–Latvia border at Valga
ⓘ
linked to:
Latvia–Estonia border
|
| electrification | not electrified ⓘ |
| formsConnectionTo | Latvian rail network via Valga ⓘ |
| gauge | 1,520 mm broad gauge ⓘ |
| hasStation |
Elva railway station
ⓘ
Keeni railway station ⓘ Palupera railway station ⓘ Puka railway station ⓘ Tartu railway station ⓘ Valga railway station ⓘ |
| locatedIn | Estonia ⓘ |
| locatedOnCorridor | north–south rail axis in the Baltic region ⓘ |
| operator | Elron (Estonian passenger rail operator) ⓘ |
| partOf | north–south rail route between Estonia and Latvia ⓘ |
| passesThrough |
Tartu County
ⓘ
Valga County ⓘ |
| regionServed | Southern Estonia ⓘ |
| significance | important international rail corridor between Estonia and Latvia ⓘ |
| status | in operation ⓘ |
| terminus |
Tartu
ⓘ
Valga ⓘ |
| trackConfiguration | single track ⓘ |
| usedFor |
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: Tartu–Valga railway Description of subject: The Tartu–Valga railway is a rail line in Estonia connecting the city of Tartu with the border town of Valga, forming part of an important north–south route toward Latvia.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tartu–Valga railway