Alessandria–Piacenza railway
E826134
The Alessandria–Piacenza railway is an Italian rail line connecting the cities of Alessandria in Piedmont and Piacenza in Emilia-Romagna, serving as an important regional transport corridor.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Alessandria–Piacenza railway canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9814038 — 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: Alessandria–Piacenza railway Context triple: [Alessandria, railJunction, Alessandria–Piacenza railway]
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A.
Bologna–Ferrara railway
The Bologna–Ferrara railway is a key rail line in northern Italy that connects the major transport hub of Bologna with the city of Ferrara, serving both regional and long-distance traffic.
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B.
Bologna–Pistoia railway
The Bologna–Pistoia railway is a major Italian rail line crossing the Apennines to connect the Emilia-Romagna city of Bologna with Pistoia in Tuscany.
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C.
Verona–Bologna railway
The Verona–Bologna railway is a major Italian rail line connecting the cities of Verona and Bologna, serving as an important north–south transport corridor in northern Italy.
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D.
Cuneo–Ventimiglia railway
The Cuneo–Ventimiglia railway is a transalpine rail line in northwestern Italy that connects the Piedmont region with the Ligurian coast and France through a series of tunnels and mountain passes.
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E.
Luino–Milan railway
The Luino–Milan railway is a rail line in northern Italy that connects the town of Luino near the Swiss border with the major city of Milan, serving both regional 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: Alessandria–Piacenza railway Target entity description: The Alessandria–Piacenza railway is an Italian rail line connecting the cities of Alessandria in Piedmont and Piacenza in Emilia-Romagna, serving as an important regional transport corridor.
-
A.
Bologna–Ferrara railway
The Bologna–Ferrara railway is a key rail line in northern Italy that connects the major transport hub of Bologna with the city of Ferrara, serving both regional and long-distance traffic.
-
B.
Bologna–Pistoia railway
The Bologna–Pistoia railway is a major Italian rail line crossing the Apennines to connect the Emilia-Romagna city of Bologna with Pistoia in Tuscany.
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C.
Verona–Bologna railway
The Verona–Bologna railway is a major Italian rail line connecting the cities of Verona and Bologna, serving as an important north–south transport corridor in northern Italy.
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D.
Cuneo–Ventimiglia railway
The Cuneo–Ventimiglia railway is a transalpine rail line in northwestern Italy that connects the Piedmont region with the Ligurian coast and France through a series of tunnels and mountain passes.
-
E.
Luino–Milan railway
The Luino–Milan railway is a rail line in northern Italy that connects the town of Luino near the Swiss border with the major city of Milan, serving both regional passenger and freight traffic.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf | railway line ⓘ |
| connects |
Alessandria
ⓘ
Piacenza ⓘ |
| connectsRegion |
northern Italy
ⓘ
linked to:
Northern Italy
northwestern Italy ⓘ |
| country | Italy ⓘ |
| electrification | 3 kV DC overhead line ⓘ |
| electrified | yes ⓘ |
| gauge | standard gauge ⓘ |
| hasService |
intercity trains
ⓘ
regional trains ⓘ |
| importantFor | regional transport ⓘ |
| lineNumber | 65 (RFI classification) ⓘ |
| locatedIn |
Emilia-Romagna
ⓘ
Piedmont ⓘ |
| openingDate | 19th century ⓘ |
| operator | Rete Ferroviaria Italiana ⓘ |
| owner | Rete Ferroviaria Italiana ⓘ |
| partOf | Italian railway network ⓘ |
| passesThrough |
Stradella
ⓘ
Tortona ⓘ Voghera ⓘ |
| regionServed |
Emilia-Romagna
ⓘ
Piedmont ⓘ |
| terminus |
Alessandria
ⓘ
Piacenza ⓘ |
| trackConfiguration | double 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: Alessandria–Piacenza railway Description of subject: The Alessandria–Piacenza railway is an Italian rail line connecting the cities of Alessandria in Piedmont and Piacenza in Emilia-Romagna, serving as an important regional transport corridor.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.