Seoul Subway Line 5
E467930
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.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T4749886 — 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 5 Context triple: [Gimpo International Airport, connectedBy, Seoul Subway Line 5]
-
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.
Gwangju Metro
Gwangju Metro is the urban rapid transit system serving the city of Gwangju in South Korea.
-
C.
Seoul Metropolitan Subway
The Seoul Metropolitan Subway is an extensive rapid transit network serving Seoul and its surrounding metropolitan area, known for its high efficiency, cleanliness, and technological sophistication.
-
D.
Incheon Subway
Incheon Subway is the urban rapid transit system serving the city of Incheon, South Korea, connecting major districts and linking with the Seoul Metropolitan Subway network.
-
E.
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.
- 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 5 Target entity description: 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.
-
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.
Gwangju Metro
Gwangju Metro is the urban rapid transit system serving the city of Gwangju in South Korea.
-
C.
Seoul Metropolitan Subway
The Seoul Metropolitan Subway is an extensive rapid transit network serving Seoul and its surrounding metropolitan area, known for its high efficiency, cleanliness, and technological sophistication.
-
D.
Incheon Subway
Incheon Subway is the urban rapid transit system serving the city of Incheon, South Korea, connecting major districts and linking with the Seoul Metropolitan Subway network.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Seoul Metropolitan Subway line
ⓘ
rapid transit line ⓘ |
| color | purple ⓘ |
| connectsTo |
Gangdong District
ⓘ
linked to:
Gangdong-gu
Gangseo District ⓘ Gimpo International Airport ⓘ Songpa District ⓘ Yeouido ⓘ
linked to:
Yeouido-dong
|
| connectsWith |
AREX
ⓘ
Gyeongui–Jungang Line ⓘ Line 9 ⓘ Seoul Subway Line 1 ⓘ Seoul Subway Line 2 ⓘ Seoul Subway Line 3 ⓘ Seoul Subway Line 4 ⓘ Seoul Subway Line 6 ⓘ Seoul Subway Line 7 ⓘ Seoul Subway Line 8 ⓘ Suin–Bundang Line ⓘ |
| country | South Korea ⓘ |
| electrification | overhead catenary ⓘ |
| fareSystem | integrated metropolitan fare system of Seoul ⓘ |
| hasBranch |
Macheon Branch
ⓘ
linked to:
Macheon Station
|
| hasExtension |
Hanam Extension
ⓘ
linked to:
Hanam
|
| hasFeature | platform screen doors at most stations ⓘ |
| hasTerminus |
Banghwa Station
ⓘ
Hanam Geomdansan Station ⓘ Macheon Station ⓘ |
| isUnderground | yes ⓘ |
| languageOfName | Korean ⓘ |
| lineNumber | 5 ⓘ |
| locatedIn | Seoul ⓘ |
| nativeName |
서울 지하철 5호선
ⓘ
linked to:
Seoul Subway Line 5
|
| openingDate | 1995 ⓘ |
| operator |
Seoul Metro
ⓘ
linked to:
Seoul Metropolitan Subway
|
| orientation | east–west ⓘ |
| partOf | Seoul Metropolitan Government urban rail network ⓘ |
| serves |
Gimpo International Airport domestic terminal area
ⓘ
linked to:
Gimpo International Airport
Gimpo International Airport international terminal area ⓘ
linked to:
Gimpo International Airport
central business district of Seoul ⓘ residential districts in eastern Seoul ⓘ residential districts in western Seoul ⓘ |
| system | Seoul Metropolitan Subway ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | heavy rail ⓘ |
| uses | metro rolling stock ⓘ |
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 5 Description of subject: 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.
Referenced by (48)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Jongno-gu, Seoul
linked to: Seoul Subway Line 5
subject linked to:
RKSS
linked to: Seoul Subway Line 5
linked to: Seoul Subway Line 5
subject linked to:
Line 1
linked to: Seoul Subway Line 5
subject linked to:
Line 4
linked to: Seoul Subway Line 5
subject linked to:
Line 3
linked to: Seoul Subway Line 5
subject linked to:
Line 8
linked to: Seoul Subway Line 5
linked to: Seoul Subway Line 5
subject linked to:
Yangcheon District, Seoul
subject linked to:
Yeongdeungpo District, Seoul
subject linked to:
AREX rail line
linked to: Seoul Subway Line 5
subject linked to:
Incheon Airport Railroad (AREX)
linked to: Seoul Subway Line 5
linked to: Seoul Subway Line 5