M40 line
E648169
The M40 line is a metro route within the Istanbul Metro system that serves as part of the city's rapid transit network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M40 line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7175684 — 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: M40 line Context triple: [Istanbul Metro, hasLine, M40 line]
-
A.
M4 line
The M4 line is a rapid transit route within the Ankara Metro system serving passengers in Turkey’s capital city.
-
B.
M34 line
The M34 line is a rapid transit route within the Istanbul Metro system that serves as part of the city's urban rail network.
-
C.
M20 line
The M20 line is a rapid transit route within the Istanbul Metro system, serving as part of the city's urban rail network.
-
D.
M32 line
The M32 line is a rapid transit route within the Istanbul Metro system serving commuters in Turkey’s largest city.
-
E.
M3 line
The M3 line is a rapid transit route within the Ankara Metro system serving parts of Turkey’s capital city.
- 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: M40 line Target entity description: The M40 line is a metro route within the Istanbul Metro system that serves as part of the city's rapid transit network.
-
A.
M4 line
The M4 line is a rapid transit route within the Ankara Metro system serving passengers in Turkey’s capital city.
-
B.
M34 line
The M34 line is a rapid transit route within the Istanbul Metro system that serves as part of the city's urban rail network.
-
C.
M20 line
The M20 line is a rapid transit route within the Istanbul Metro system, serving as part of the city's urban rail network.
-
D.
M32 line
The M32 line is a rapid transit route within the Istanbul Metro system serving commuters in Turkey’s largest city.
-
E.
M3 line
The M3 line is a rapid transit route within the Ankara Metro system serving parts of Turkey’s capital city.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf | metro line ⓘ |
| continent |
Asia
ⓘ
Europe ⓘ |
| country | Turkey ⓘ |
| electrification | electric traction ⓘ |
| fareSystem | Istanbulkart ⓘ |
| hasLanguage | Turkish ⓘ |
| hasOperator | Metro Istanbul ⓘ |
| hasOwner | Istanbul Metropolitan Municipality ⓘ |
| hasRouteDesignation | M40 ⓘ |
| isInNetwork |
Istanbul Metro rapid transit network
ⓘ
linked to:
Istanbul Metro
|
| isPartOf | Istanbul public transport network ⓘ |
| locatedIn |
Istanbul
ⓘ
Turkey ⓘ |
| modeOfTransport | metro ⓘ |
| partOf | Istanbul Metro ⓘ |
| publicTransportType | urban rail ⓘ |
| serves |
Istanbul metropolitan area
ⓘ
linked to:
Istanbul
|
| serviceType | passenger transport ⓘ |
| system | Istanbul Metro ⓘ |
| trackGauge | standard gauge ⓘ |
| transportNetworkType | rapid transit ⓘ |
| usesSignageLanguage |
English
ⓘ
Turkish ⓘ |
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: M40 line Description of subject: The M40 line is a metro route within the Istanbul Metro system that serves as part of the city's rapid transit network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.