Constantine tramway
E161125
The Constantine tramway is a modern light rail system serving the city of Constantine in northeastern Algeria, providing urban public transportation across its hilly and historic landscape.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Constantine tramway canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1406047 — 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: Constantine tramway Context triple: [Constantine, transport, Constantine tramway]
-
A.
Alexandria tram
The Alexandria tram is one of the oldest operating electric tram systems in the world, serving as a key component of public transportation in the Egyptian coastal city of Alexandria.
-
B.
New Tram
New Tram is an automated guideway transit line in Osaka, Japan, operated as part of the Osaka Metro system.
-
C.
Cambridge Guided Busway
The Cambridge Guided Busway is a dedicated guided bus rapid transit system in Cambridgeshire, England, providing fast, segregated routes that link Cambridge with surrounding towns and key sites such as major employment and research hubs.
-
D.
Powell-Mason cable car line
The Powell-Mason cable car line is one of San Francisco’s historic cable car routes, carrying passengers between the bustling waterfront and the hilltop neighborhoods, including Nob Hill.
-
E.
Powell–Hyde cable car line
The Powell–Hyde cable car line is one of San Francisco’s historic cable car routes, running from Market Street over Nob Hill and Russian Hill to the city’s northern waterfront near Fisherman’s Wharf.
- 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: Constantine tramway Target entity description: The Constantine tramway is a modern light rail system serving the city of Constantine in northeastern Algeria, providing urban public transportation across its hilly and historic landscape.
-
A.
Alexandria tram
The Alexandria tram is one of the oldest operating electric tram systems in the world, serving as a key component of public transportation in the Egyptian coastal city of Alexandria.
-
B.
New Tram
New Tram is an automated guideway transit line in Osaka, Japan, operated as part of the Osaka Metro system.
-
C.
Cambridge Guided Busway
The Cambridge Guided Busway is a dedicated guided bus rapid transit system in Cambridgeshire, England, providing fast, segregated routes that link Cambridge with surrounding towns and key sites such as major employment and research hubs.
-
D.
Powell-Mason cable car line
The Powell-Mason cable car line is one of San Francisco’s historic cable car routes, carrying passengers between the bustling waterfront and the hilltop neighborhoods, including Nob Hill.
-
E.
Powell–Hyde cable car line
The Powell–Hyde cable car line is one of San Francisco’s historic cable car routes, running from Market Street over Nob Hill and Russian Hill to the city’s northern waterfront near Fisherman’s Wharf.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
light rail system
ⓘ
tramway ⓘ |
| connects |
central Constantine
ⓘ
commercial areas of Constantine ⓘ residential districts of Constantine ⓘ university areas of Constantine ⓘ |
| continent | Africa ⓘ |
| country | Algeria ⓘ |
| designedFor |
environmentally friendly transport
ⓘ
reduction of road congestion ⓘ urban mobility improvement ⓘ |
| electrification | overhead line ⓘ |
| fareSystem | ticket-based ⓘ |
| hasInfrastructureType |
segregated right-of-way
ⓘ
street-running sections ⓘ |
| locatedIn |
Constantine
ⓘ
northeastern Algeria ⓘ |
| numberOfLines | 1 ⓘ |
| numberOfStations | approximately 10 ⓘ |
| openingDate | 2013 ⓘ |
| operator | Entreprise du Métro d’Alger ⓘ |
| owner |
Algerian government
ⓘ
linked to:
Government of Algeria
|
| partOf | public transport in Constantine ⓘ |
| propulsionSystem | electric ⓘ |
| regionServed | Constantine Province ⓘ |
| rollingStockType | low-floor tram vehicles ⓘ |
| serves |
Constantine
ⓘ
historic city centre of Constantine ⓘ suburban neighbourhoods of Constantine ⓘ |
| servesFunction |
commuter transport
ⓘ
mass transit ⓘ |
| systemLength | approximately 8.1 kilometres ⓘ |
| terrainServed | hilly urban landscape ⓘ |
| trackGauge | standard gauge ⓘ |
| transportType | urban public 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: Constantine tramway Description of subject: The Constantine tramway is a modern light rail system serving the city of Constantine in northeastern Algeria, providing urban public transportation across its hilly and historic landscape.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.