Seoul Subway Line 3
E488887
Seoul Subway Line 3 is a major north–south rapid transit line in Seoul’s subway network, connecting key districts including Gangnam with central and northern parts of the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Seoul Subway Line 3 canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T4839147 — 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: Seoul Subway Line 3 Context triple: [Gangnam District, partOfMetropolitanLine, Seoul Subway Line 3]
-
A.
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.
-
B.
Seoul Subway Line 5
Seoul Subway Line 5 is a major east–west rapid transit line in Seoul’s subway system that links key districts and facilities, including Gimpo International Airport, across the city.
-
C.
Seoul Subway Line 9
Seoul Subway Line 9 is a major east–west rapid transit line in Seoul known for its express services that connect key business districts and residential areas across the city.
-
D.
Shinbundang Line
The Shinbundang Line is a high-speed, driverless subway line in the Seoul metropolitan area that connects southern Seoul with the satellite city of Bundang.
-
E.
Suin–Bundang Line
The Suin–Bundang Line is a major commuter rail line in the Seoul metropolitan area that connects southeastern Seoul with surrounding cities such as Seongnam, Yongin, and Suwon.
- 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: Seoul Subway Line 3 Target entity description: Seoul Subway Line 3 is a major north–south rapid transit line in Seoul’s subway network, connecting key districts including Gangnam with central and northern parts of the city.
-
A.
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.
-
B.
Seoul Subway Line 5
Seoul Subway Line 5 is a major east–west rapid transit line in Seoul’s subway system that links key districts and facilities, including Gimpo International Airport, across the city.
-
C.
Seoul Subway Line 9
Seoul Subway Line 9 is a major east–west rapid transit line in Seoul known for its express services that connect key business districts and residential areas across the city.
-
D.
Shinbundang Line
The Shinbundang Line is a high-speed, driverless subway line in the Seoul metropolitan area that connects southern Seoul with the satellite city of Bundang.
-
E.
Suin–Bundang Line
The Suin–Bundang Line is a major commuter rail line in the Seoul metropolitan area that connects southeastern Seoul with surrounding cities such as Seongnam, Yongin, and Suwon.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Seoul Metropolitan Subway line
ⓘ
rapid transit line ⓘ |
| connectsCity |
Goyang
NERFINISHED
ⓘ
Seongnam NERFINISHED ⓘ |
| connectsDistrict |
Eunpyeong District
NERFINISHED
ⓘ
Gangnam District NERFINISHED ⓘ Jongno District NERFINISHED ⓘ Mapo District NERFINISHED ⓘ Nowon District NERFINISHED ⓘ Yongsan District NERFINISHED ⓘ |
| country | South Korea ⓘ |
| electrification | 750 V DC third rail ⓘ |
| extendedTo |
Daehwa Station
NERFINISHED
ⓘ
Ogeum Station NERFINISHED ⓘ Suseo Station NERFINISHED ⓘ |
| hasDepot |
Jichuk Depot
NERFINISHED
ⓘ
Suseo Depot NERFINISHED ⓘ |
| interchangeWith |
AREX
NERFINISHED
ⓘ
Bundang Line NERFINISHED ⓘ Gyeongui–Jungang Line NERFINISHED ⓘ Seoul Subway Line 1 NERFINISHED ⓘ Seoul Subway Line 2 NERFINISHED ⓘ Seoul Subway Line 4 NERFINISHED ⓘ Seoul Subway Line 5 NERFINISHED ⓘ Seoul Subway Line 6 NERFINISHED ⓘ Seoul Subway Line 7 NERFINISHED ⓘ Seoul Subway Line 8 NERFINISHED ⓘ |
| lineColor | orange ⓘ |
| lineNumber | 3 ⓘ |
| locatedIn |
Gyeonggi Province
NERFINISHED
ⓘ
Seoul NERFINISHED ⓘ |
| notableStation |
Daehwa Station
NERFINISHED
ⓘ
Express Bus Terminal Station NERFINISHED ⓘ Gangnam Station NERFINISHED ⓘ Gyeongbokgung Station NERFINISHED ⓘ Jongno 3-ga Station NERFINISHED ⓘ Ogeum Station NERFINISHED ⓘ |
| opened | 1985-10-18 ⓘ |
| openedSection | Gupabal–Yangjae section NERFINISHED ⓘ |
| operator |
Korail
NERFINISHED
ⓘ
Seoul Metro NERFINISHED ⓘ |
| orientation | north–south ⓘ |
| rollingStock |
Korail Class 3000 trains
NERFINISHED
ⓘ
Seoul Metro 3000 series trains NERFINISHED ⓘ |
| serviceType | heavy rail ⓘ |
| system | Seoul Metropolitan Subway NERFINISHED ⓘ |
| terminusStation |
Daehwa Station
NERFINISHED
ⓘ
Ogeum Station NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
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: Seoul Subway Line 3 Description of subject: Seoul Subway Line 3 is a major north–south rapid transit line in Seoul’s subway network, connecting key districts including Gangnam with central and northern parts of the city.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Jongno-gu