M49 line
E651104
The M49 line is a rapid transit route within the Istanbul Metro system, serving as part of the city's urban rail network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M49 line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7175693 — 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: M49 line Context triple: [Istanbul Metro, hasLine, M49 line]
-
A.
M45 line
The M45 line is a rapid transit route within the Istanbul Metro system serving passengers in Turkey’s largest city.
-
B.
M31 line
The M31 line is a metro route within the Istanbul Metro rapid transit network in Istanbul, Turkey.
-
C.
M42 line
The M42 line is a metro line within the Istanbul Metro rapid transit network in Istanbul, Turkey.
-
D.
M33 line
The M33 line is a metro line within the Istanbul Metro rapid transit network in Istanbul, Turkey.
-
E.
M36 line
The M36 line is a metro route within the Istanbul Metro system that serves as part of the city's rapid transit network.
- 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: M49 line Target entity description: The M49 line is a rapid transit route within the Istanbul Metro system, serving as part of the city's urban rail network.
-
A.
M45 line
The M45 line is a rapid transit route within the Istanbul Metro system serving passengers in Turkey’s largest city.
-
B.
M31 line
The M31 line is a metro route within the Istanbul Metro rapid transit network in Istanbul, Turkey.
-
C.
M42 line
The M42 line is a metro line within the Istanbul Metro rapid transit network in Istanbul, Turkey.
-
D.
M33 line
The M33 line is a metro line within the Istanbul Metro rapid transit network in Istanbul, Turkey.
-
E.
M36 line
The M36 line is a metro route within the Istanbul Metro system that serves as part of the city's rapid transit network.
- F. None of above. chosen
Statements (19)
| Predicate | Object |
|---|---|
| instanceOf | rapid transit line ⓘ |
| country | Turkey ⓘ |
| electrification | electric railway ⓘ |
| fareSystem | Istanbul public transport fare system ⓘ |
| gauge | standard gauge ⓘ |
| isPartOf |
Istanbul urban rail network
ⓘ
linked to:
Istanbul public transport network
|
| locatedIn |
Istanbul
ⓘ
Turkey ⓘ |
| modeOfTransport | rapid transit ⓘ |
| operator | Metro Istanbul ⓘ |
| ownedBy | Istanbul Metropolitan Municipality ⓘ |
| partOf | Istanbul Metro ⓘ |
| publicTransportType | metro ⓘ |
| railwaySignalling | metro signalling system ⓘ |
| serves |
city of Istanbul
ⓘ
linked to:
Istanbul
|
| serviceType | passenger transport ⓘ |
| systemType | urban rail network ⓘ |
| trackType | double track ⓘ |
| transportNetwork | Istanbul Metro ⓘ |
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: M49 line Description of subject: The M49 line is a rapid transit route within the Istanbul Metro system, serving as part of the city's urban rail network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.