Daegu Metro Line 2
E689075
Daegu Metro Line 2 is an east–west rapid transit line in Daegu, South Korea, forming a key part of the city's urban rail network.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Daegu Metro Line 2 canonical | 7 |
| Daegu Metro Line 2 operations division | 1 |
| Daegu Subway Line 2 (extension to Gyeongsan area) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7217868 — 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: Daegu Metro Line 2 Context triple: [Daegu Metro, hasLine, Daegu Metro Line 2]
-
A.
Daegu Metro
Daegu Metro is the urban rapid transit system serving the city of Daegu in South Korea, providing high-capacity rail transportation across the metropolitan area.
-
B.
Gwangju Metro
Gwangju Metro is the urban rapid transit system serving the city of Gwangju in South Korea.
-
C.
Daejeon Metro
Daejeon Metro is the urban rapid transit system serving the city of Daejeon in South Korea.
-
D.
Busan Metro
Busan Metro is the rapid transit system serving the city of Busan, South Korea, providing extensive urban and suburban rail transportation across the metropolitan area.
-
E.
Seoul Subway Line 2
Seoul Subway Line 2 is a major circular metro line in Seoul’s subway system, known for serving key commercial and business districts across the 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: Daegu Metro Line 2 Target entity description: Daegu Metro Line 2 is an east–west rapid transit line in Daegu, South Korea, forming a key part of the city's urban rail network.
-
A.
Daegu Metro
Daegu Metro is the urban rapid transit system serving the city of Daegu in South Korea, providing high-capacity rail transportation across the metropolitan area.
-
B.
Gwangju Metro
Gwangju Metro is the urban rapid transit system serving the city of Gwangju in South Korea.
-
C.
Daejeon Metro
Daejeon Metro is the urban rapid transit system serving the city of Daejeon in South Korea.
-
D.
Busan Metro
Busan Metro is the rapid transit system serving the city of Busan, South Korea, providing extensive urban and suburban rail transportation across the metropolitan area.
-
E.
Seoul Subway Line 2
Seoul Subway Line 2 is a major circular metro line in Seoul’s subway system, known for serving key commercial and business districts across the city.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
public transport infrastructure ⓘ |
| connects |
central Daegu
ⓘ
eastern Daegu ⓘ western Daegu ⓘ |
| country | South Korea ⓘ |
| direction | east–west ⓘ |
| electrification | overhead line ⓘ |
| fareMedium |
rechargeable smart card
ⓘ
single-journey ticket ⓘ |
| farePolicy | distance-based fare ⓘ |
| fareSystem | integrated with Daegu Metro network ⓘ |
| gauge | standard gauge ⓘ |
| hasColor | green (line color in maps) ⓘ |
| hasMode |
elevated
ⓘ
underground ⓘ |
| hasRouteOrientation | east–west axis ⓘ |
| isPartOf | public transport in Daegu ⓘ |
| languageOfSignage |
English
ⓘ
Korean ⓘ |
| locale | Daegu, South Korea ⓘ |
| locatedIn | Daegu ⓘ |
| networkRole | core line of Daegu Metro network ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 2005-10-18 ⓘ |
| operator | Daegu Metropolitan Transit Corporation ⓘ |
| owner |
Daegu Metropolitan City
ⓘ
linked to:
Daegu
|
| partOf | Daegu Metro ⓘ |
| primaryFunction |
mass transit for daily commuters
ⓘ
urban mobility corridor ⓘ |
| regionServed |
North Gyeongsang region (metropolitan area)
ⓘ
linked to:
Yeongnam region
|
| roleInNetwork | key east–west corridor ⓘ |
| rollingStockType | electric multiple unit ⓘ |
| safetySystem |
automatic train control
ⓘ
platform screen doors (at many stations) ⓘ |
| servedSettlement | Daegu ⓘ |
| serviceType |
commuter transport
ⓘ
urban rail ⓘ |
| system |
Daegu Metropolitan Subway
ⓘ
linked to:
Daegu Metro
|
| ticketingSystem | automatic fare collection ⓘ |
| trackConfiguration | double track ⓘ |
| transitType | rapid transit ⓘ |
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: Daegu Metro Line 2 Description of subject: Daegu Metro Line 2 is an east–west rapid transit line in Daegu, South Korea, forming a key part of the city's urban rail network.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Gyeongsan, Gyeongsangbuk-do, South Korea
linked to: Daegu Metro Line 2
linked to: Daegu Metro Line 2