Seoul Subway Line 7
E490948
Seoul Subway Line 7 is a major north–south subway line in Seoul’s metropolitan rail network, connecting key residential and commercial districts including Gangnam.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Seoul Subway Line 7 canonical | 2 |
| Seoul Metropolitan Subway Line 7 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4839148 — 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 7 Context triple: [Gangnam District, partOfMetropolitanLine, Seoul Subway Line 7]
-
A.
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.
-
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 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.
-
D.
Seoul Subway Line 3
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.
-
E.
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.
- 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 7 Target entity description: Seoul Subway Line 7 is a major north–south subway line in Seoul’s metropolitan rail network, connecting key residential and commercial districts including Gangnam.
-
A.
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.
-
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 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.
-
D.
Seoul Subway Line 3
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.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
subway line in South Korea ⓘ |
| character |
partially elevated
ⓘ
underground ⓘ |
| connectsTo |
AREX
NERFINISHED
ⓘ
EverLine NERFINISHED ⓘ Gyeongchun Line NERFINISHED ⓘ Gyeonggang Line NERFINISHED ⓘ Gyeongui–Jungang Line NERFINISHED ⓘ Incheon Subway Line 1 NERFINISHED ⓘ Seoul Subway Line 1 NERFINISHED ⓘ Seoul Subway Line 2 NERFINISHED ⓘ Seoul Subway Line 3 NERFINISHED ⓘ Seoul Subway Line 4 NERFINISHED ⓘ Seoul Subway Line 5 NERFINISHED ⓘ Seoul Subway Line 6 NERFINISHED ⓘ Seoul Subway Line 8 NERFINISHED ⓘ Seoul Subway Line 9 NERFINISHED ⓘ Shinbundang Line NERFINISHED ⓘ Suin–Bundang Line NERFINISHED ⓘ U Line NERFINISHED ⓘ Ui LRT NERFINISHED ⓘ |
| country | South Korea ⓘ |
| electrification | 1500 V DC overhead catenary ⓘ |
| fareSystem | Metropolitan integrated fare system ⓘ |
| hasColor | olive green ⓘ |
| hasPlatformScreenDoors | yes ⓘ |
| hasTerminus |
Bupyeong-gu Office Station
NERFINISHED
ⓘ
Jangam Station NERFINISHED ⓘ |
| lineNumber | 7 ⓘ |
| locatedIn |
Gyeonggi Province
NERFINISHED
ⓘ
Seoul NERFINISHED ⓘ |
| openingDate | 1996 ⓘ |
| operator | Seoul Metro NERFINISHED ⓘ |
| orientation | north–south ⓘ |
| owner | Seoul Metropolitan Government NERFINISHED ⓘ |
| partOf | Seoul Metropolitan Subway NERFINISHED ⓘ |
| serves |
Dobong District
NERFINISHED
ⓘ
Gangbuk District NERFINISHED ⓘ Gangnam District NERFINISHED ⓘ Geumcheon District NERFINISHED ⓘ Guro District NERFINISHED ⓘ Gwangjin District NERFINISHED ⓘ Incheon NERFINISHED ⓘ Nowon District NERFINISHED ⓘ Songpa District NERFINISHED ⓘ |
| system | Seoul Metropolitan Subway NERFINISHED ⓘ |
| trackGauge | 1435 mm standard gauge ⓘ |
| usesRollingStock | Seoul Metro 7000 series NERFINISHED ⓘ |
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 7 Description of subject: Seoul Subway Line 7 is a major north–south subway line in Seoul’s metropolitan rail network, connecting key residential and commercial districts including Gangnam.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Seoul Metropolitan Subway Line 7