Ostrava–Opava line
E686382
The Ostrava–Opava line is a regional railway route in the Czech Republic connecting the industrial city of Ostrava with the historic city of Opava.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ostrava–Opava line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7670995 — 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: Ostrava–Opava line Context triple: [Ostrava main railway station, railwayLine, Ostrava–Opava line]
-
A.
Ostrava–Bohumín line
The Ostrava–Bohumín line is a key railway route in the Czech Republic that connects the industrial city of Ostrava with the town of Bohumín and forms part of major national and international rail corridors.
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B.
Ostrava–Praha line
The Ostrava–Praha line is a major Czech railway corridor connecting the industrial city of Ostrava with the capital Prague, serving as one of the country’s busiest passenger and freight routes.
-
C.
Ostrava–Frýdlant nad Ostravicí line
The Ostrava–Frýdlant nad Ostravicí line is a regional railway route in the Moravian-Silesian Region of the Czech Republic that connects the city of Ostrava with the foothills of the Beskid Mountains.
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D.
Plzeň–Cheb railway line
The Plzeň–Cheb railway line is a major rail route in western Czechia connecting the city of Plzeň with the border city of Cheb and forming part of an important corridor toward Germany.
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E.
Prague–Plzeň railway line
The Prague–Plzeň railway line is a major Czech rail corridor connecting the capital city Prague with the industrial and regional hub of Plzeň, serving both passenger and freight traffic.
- 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: Ostrava–Opava line Target entity description: The Ostrava–Opava line is a regional railway route in the Czech Republic connecting the industrial city of Ostrava with the historic city of Opava.
-
A.
Ostrava–Bohumín line
The Ostrava–Bohumín line is a key railway route in the Czech Republic that connects the industrial city of Ostrava with the town of Bohumín and forms part of major national and international rail corridors.
-
B.
Ostrava–Praha line
The Ostrava–Praha line is a major Czech railway corridor connecting the industrial city of Ostrava with the capital Prague, serving as one of the country’s busiest passenger and freight routes.
-
C.
Ostrava–Frýdlant nad Ostravicí line
The Ostrava–Frýdlant nad Ostravicí line is a regional railway route in the Moravian-Silesian Region of the Czech Republic that connects the city of Ostrava with the foothills of the Beskid Mountains.
-
D.
Plzeň–Cheb railway line
The Plzeň–Cheb railway line is a major rail route in western Czechia connecting the city of Plzeň with the border city of Cheb and forming part of an important corridor toward Germany.
-
E.
Prague–Plzeň railway line
The Prague–Plzeň railway line is a major Czech rail corridor connecting the capital city Prague with the industrial and regional hub of Plzeň, serving both passenger and freight traffic.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| connects |
Opava
ⓘ
Ostrava ⓘ |
| country | Czech Republic ⓘ |
| electrification | electrified ⓘ |
| gauge | standard gauge ⓘ |
| hasEndpoint |
Opava východ railway station
ⓘ
Ostrava main railway station ⓘ |
| hasServiceType |
regional trains
ⓘ
semi-fast trains ⓘ stopping trains ⓘ |
| locatedIn |
Moravia (Czech Republic)
ⓘ
linked to:
Moravia
Moravian-Silesian Region ⓘ Silesia (Czech Republic) ⓘ
linked to:
Silesia
|
| operator | Správa železnic ⓘ |
| partOf | Czech railway network ⓘ |
| primaryRollingStockType | electric multiple units ⓘ |
| regionTypeServed |
historic city
ⓘ
industrial region ⓘ |
| servesCity |
Opava
ⓘ
Ostrava ⓘ |
| trackConfiguration | double track ⓘ |
| usedFor |
commuter traffic
ⓘ
passenger transport ⓘ regional 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: Ostrava–Opava line Description of subject: The Ostrava–Opava line is a regional railway route in the Czech Republic connecting the industrial city of Ostrava with the historic city of Opava.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.