Seoul Subway Line 1
E536155
Seoul Subway Line 1 is a major north–south subway line in the Seoul Metropolitan Subway system, connecting central Seoul with numerous suburban cities and serving as one of the network’s oldest and busiest routes.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Seoul Subway Line 1 canonical | 9 |
| Seoul Metropolitan Subway Line 1 | 5 |
| Seoul Subway Line 1 (near Anam and Bomun access via adjacent stations) | 1 |
| 수도권 전철 1호선 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5575226 — 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 1 Context triple: [Jongno-gu, transportServedBy, Seoul Subway Line 1]
-
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 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.
-
C.
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.
-
D.
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.
-
E.
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.
- 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 1 Target entity description: Seoul Subway Line 1 is a major north–south subway line in the Seoul Metropolitan Subway system, connecting central Seoul with numerous suburban cities and serving as one of the network’s oldest and busiest routes.
-
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 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.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (69)
| Predicate | Object |
|---|---|
| instanceOf |
Seoul Metropolitan Subway line
ⓘ
metro line ⓘ railway line ⓘ |
| character |
at-grade
ⓘ
elevated ⓘ underground ⓘ |
| connects |
Anyang
NERFINISHED
ⓘ
Asan NERFINISHED ⓘ Bucheon NERFINISHED ⓘ Cheonan NERFINISHED ⓘ Dongducheon NERFINISHED ⓘ Gwangmyeong NERFINISHED ⓘ Incheon NERFINISHED ⓘ Suwon NERFINISHED ⓘ Uijeongbu NERFINISHED ⓘ central Seoul ⓘ |
| country | South Korea ⓘ |
| direction | north–south ⓘ |
| electrification | 25 kV AC overhead line ⓘ |
| fareSystem | integrated metropolitan fare system ⓘ |
| hasInterchangeWith |
AREX
NERFINISHED
ⓘ
Gyeongchun Line NERFINISHED ⓘ Gyeongui–Jungang Line 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 7 NERFINISHED ⓘ Seoul Subway Line 8 NERFINISHED ⓘ Shinbundang Line NERFINISHED ⓘ Suin–Bundang Line NERFINISHED ⓘ |
| hasStation |
Cheonan Station
NERFINISHED
ⓘ
Cheongnyangni Station NERFINISHED ⓘ City Hall Station NERFINISHED ⓘ Dongdaemun Station NERFINISHED ⓘ Guro Station NERFINISHED ⓘ Incheon Station NERFINISHED ⓘ Jonggak Station NERFINISHED ⓘ Jongno 3(sam)-ga Station NERFINISHED ⓘ Seoul Station NERFINISHED ⓘ Sinchang Station NERFINISHED ⓘ Soyosan Station NERFINISHED ⓘ Suwon Station NERFINISHED ⓘ Yongsan Station NERFINISHED ⓘ |
| hasTerminus |
Gwangmyeong Station
NERFINISHED
ⓘ
Incheon Station NERFINISHED ⓘ Sinchang Station NERFINISHED ⓘ Soyosan Station NERFINISHED ⓘ |
| isBusiestAmong | Seoul Metropolitan Subway lines NERFINISHED ⓘ |
| isOldestLineOf | Seoul Metropolitan Subway NERFINISHED ⓘ |
| lineColor | dark blue ⓘ |
| lineNumber | 1 ⓘ |
| locatedIn |
Gyeonggi Province
NERFINISHED
ⓘ
Incheon NERFINISHED ⓘ Seoul NERFINISHED ⓘ |
| openingDate | 1974-08-15 ⓘ |
| operator |
Korail
NERFINISHED
ⓘ
Seoul Metro NERFINISHED ⓘ |
| partOf | Seoul Metropolitan Subway NERFINISHED ⓘ |
| servicePattern |
express
ⓘ
local ⓘ |
| ticketing | T-money compatible ⓘ |
| usesInfrastructure |
Gyeongbu Line
NERFINISHED
ⓘ
Gyeongin Line NERFINISHED ⓘ Gyeongui–Jungang Line (shared tracks in sections) NERFINISHED ⓘ Gyeongwon Line NERFINISHED ⓘ Janghang Line NERFINISHED ⓘ |
| usesTrackGauge | 1,435 mm 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 1 Description of subject: Seoul Subway Line 1 is a major north–south subway line in the Seoul Metropolitan Subway system, connecting central Seoul with numerous suburban cities and serving as one of the network’s oldest and busiest routes.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Jongno-gu
subject surface form:
Incheon Subway Line 1
subject surface form:
Incheon Subway Line 2
this entity surface form:
Seoul Metropolitan Subway Line 1
this entity surface form:
Seoul Metropolitan Subway Line 1
this entity surface form:
Seoul Metropolitan Subway Line 1
this entity surface form:
Seoul Subway Line 1 (near Anam and Bomun access via adjacent stations)
subject surface form:
Suwon
this entity surface form:
수도권 전철 1호선
this entity surface form:
Seoul Metropolitan Subway Line 1
this entity surface form:
Seoul Metropolitan Subway Line 1