M27 line
E654722
The M27 line is a planned rapid transit route within the Istanbul Metro network designed to expand urban rail connectivity in the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M27 line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7175671 — 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: M27 line Context triple: [Istanbul Metro, hasLine, M27 line]
-
A.
M21 line
The M21 line is a rapid transit route within the Istanbul Metro system serving passengers in Istanbul, Turkey.
-
B.
M22 line
The M22 line is a planned rapid transit route within the Istanbul Metro network intended to expand urban rail connectivity in the city.
-
C.
M24 line
The M24 line is a rapid transit route within the Istanbul Metro system serving passengers in Turkey’s largest city.
-
D.
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.
-
E.
M47 line
The M47 line is a rapid transit route within the Istanbul Metro system, serving as part of the city's urban rail 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: M27 line Target entity description: The M27 line is a planned rapid transit route within the Istanbul Metro network designed to expand urban rail connectivity in the city.
-
A.
M21 line
The M21 line is a rapid transit route within the Istanbul Metro system serving passengers in Istanbul, Turkey.
-
B.
M22 line
The M22 line is a planned rapid transit route within the Istanbul Metro network intended to expand urban rail connectivity in the city.
-
C.
M24 line
The M24 line is a rapid transit route within the Istanbul Metro system serving passengers in Turkey’s largest city.
-
D.
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.
-
E.
M47 line
The M47 line is a rapid transit route within the Istanbul Metro system, serving as part of the city's urban rail network.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
planned transport infrastructure project
ⓘ
rapid transit line ⓘ |
| cityServed | Istanbul ⓘ |
| country | Turkey ⓘ |
| electrification | overhead or third rail (planned, unspecified) ⓘ |
| fareSystem | integrated with Istanbul fare system (planned) ⓘ |
| goal |
enhance intermodal connectivity in Istanbul
ⓘ
improve public transportation capacity in Istanbul ⓘ reduce road traffic congestion in Istanbul ⓘ |
| hasLanguageOfName | Turkish ⓘ |
| hasServiceType | metro ⓘ |
| isPartOfCategory |
Istanbul Metro lines
ⓘ
Proposed public transport projects in Turkey ⓘ |
| locatedIn | Istanbul ⓘ |
| network |
Istanbul Metro network
ⓘ
linked to:
Istanbul Metro
|
| operator |
Metro Istanbul (planned)
ⓘ
linked to:
Metro Istanbul
|
| owner | Istanbul Metropolitan Municipality ⓘ |
| partOf | Istanbul Metro ⓘ |
| plannedInfrastructureType | underground railway (likely) ⓘ |
| purpose | urban rail connectivity expansion ⓘ |
| regionServed | Marmara Region ⓘ |
| safetySystem | modern signalling system (planned) ⓘ |
| status | planned ⓘ |
| systemType | rapid transit ⓘ |
| transportMode | rail ⓘ |
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: M27 line Description of subject: The M27 line is a planned rapid transit route within the Istanbul Metro network designed to expand urban rail connectivity in the city.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.