Busan Metro Line 2
E689798
Busan Metro Line 2 is a major east–west subway line in Busan, South Korea, connecting key residential, commercial, and industrial areas across the city.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Busan Metro Line 2 canonical | 29 |
| Busan Metro Line 2 (nearby access via Haeundae) | 1 |
| Busan Metro Line 2 (nearby stations) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7251543 — 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: Busan Metro Line 2 Context triple: [Sasang Industrial Complex, servedByTransport, Busan Metro Line 2]
-
A.
Daegu Metro Line 2
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.
-
B.
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.
-
C.
Daegu Metro Line 3
Daegu Metro Line 3 is a monorail rapid transit line in Daegu, South Korea, forming part of the city's urban rail network.
-
D.
Daegu Metro Line 1
Daegu Metro Line 1 is a major rapid transit line in Daegu, South Korea, notable as the line on which the deadly 2003 Daegu subway fire occurred.
-
E.
Gwangju Metro
Gwangju Metro is the urban rapid transit system serving the city of Gwangju in South Korea.
- 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: Busan Metro Line 2 Target entity description: Busan Metro Line 2 is a major east–west subway line in Busan, South Korea, connecting key residential, commercial, and industrial areas across the city.
-
A.
Daegu Metro Line 2
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.
-
B.
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.
-
C.
Daegu Metro Line 3
Daegu Metro Line 3 is a monorail rapid transit line in Daegu, South Korea, forming part of the city's urban rail network.
-
D.
Daegu Metro Line 1
Daegu Metro Line 1 is a major rapid transit line in Daegu, South Korea, notable as the line on which the deadly 2003 Daegu subway fire occurred.
-
E.
Gwangju Metro
Gwangju Metro is the urban rapid transit system serving the city of Gwangju in South Korea.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | metro line ⓘ |
| character |
mostly underground
ⓘ
partly elevated ⓘ |
| connectsArea |
Busanjin District
ⓘ
Haeundae District ⓘ Sasang District ⓘ Suyeong District ⓘ Yangsan ⓘ |
| connectsWith |
Busan Metro Line 1 at Seomyeon
ⓘ
Busan Metro Line 1 at Seomyeon station ⓘ Busan Metro Line 3 at Suyeong station ⓘ Busan–Gimhae Light Rail Transit at Sasang station ⓘ |
| country | South Korea ⓘ |
| direction | east–west ⓘ |
| electrification | overhead catenary ⓘ |
| fareCollection | contactless smart card ⓘ |
| fareSystem | integrated with Busan Metro ⓘ |
| hasStation |
Centum City station
ⓘ
linked to:
Centum City Station
Gwangan station ⓘ
linked to:
Gwangan Station
Hopo station NERFINISHED ⓘ Jangsan station ⓘ Sasang station ⓘ
linked to:
Sasang Station
Seomyeon station ⓘ |
| lineColor | green ⓘ |
| lineNumber | 2 ⓘ |
| locale | Busan, South Korea ⓘ |
| locatedIn | Busan ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 1999 ⓘ |
| operator | Busan Transportation Corporation ⓘ |
| owner |
Busan Metropolitan City
ⓘ
linked to:
Busan metropolitan area
|
| partOf |
Busan urban rail network
ⓘ
linked to:
Busan Metro
|
| rollingStock | electric multiple units ⓘ |
| safetySystem |
automatic train control
ⓘ
automatic train protection ⓘ |
| serves |
commercial areas of Busan
ⓘ
industrial areas of Busan ⓘ residential areas of Busan ⓘ |
| servicePattern | all-stations ⓘ |
| status | operational ⓘ |
| system | Busan Metro ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType |
heavy rail
ⓘ
subway ⓘ |
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: Busan Metro Line 2 Description of subject: Busan Metro Line 2 is a major east–west subway line in Busan, South Korea, connecting key residential, commercial, and industrial areas across the city.
Referenced by (31)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Centum City area of Busan
subject linked to:
Centum City area of Busan
linked to: Busan Metro Line 2
subject linked to:
Suyeong-gu, Busan
subject linked to:
Busanjin-gu, Busan
subject linked to:
Nam-gu
linked to: Busan Metro Line 2