Line 7
E467937
Line 7 is a major route of the Seoul Metropolitan Subway system that runs in a north–south diagonal across the city, connecting residential districts with key urban hubs.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 7 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4749918 — 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: Line 7 Context triple: [Seoul Metropolitan Subway, hasPart, Line 7]
-
A.
Line 7
Line 7 is a route of Mexico City’s Metrobús bus rapid transit system that serves key corridors with dedicated lanes and high-capacity articulated buses.
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B.
Line 7
Line 7 is an east–west rapid transit line of the Beijing Subway serving several central and southwestern districts of Beijing.
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C.
Line 7
Line 7 is a rapid transit line of the Guangzhou Metro system serving parts of Guangzhou and its surrounding areas.
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D.
Line 7
Line 7 is one of the main lines of the Tehran Metro rapid transit network, serving various districts of Iran’s capital city.
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E.
Line 7
Line 7 is a major rapid transit route of the Shanghai Metro that runs in a roughly north–south direction, connecting several key residential, commercial, and cultural areas 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: Line 7 Target entity description: Line 7 is a major route of the Seoul Metropolitan Subway system that runs in a north–south diagonal across the city, connecting residential districts with key urban hubs.
-
A.
Line 7
Line 7 is a major rapid transit route of the Shanghai Metro that runs in a roughly north–south direction, connecting several key residential, commercial, and cultural areas across the city.
-
B.
Line 7
Line 7 is an east–west rapid transit line of the Beijing Subway serving several central and southwestern districts of Beijing.
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C.
Line 7
Line 7 is one of the main lines of the Tehran Metro rapid transit network, serving various districts of Iran’s capital city.
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D.
Line 7
Line 7 is a trolleybus route within Geneva’s public transport system that connects key districts of the city.
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E.
Line 7
Line 7 is a rapid transit line of the Shenzhen Metro system in Shenzhen, China, serving several key districts across the city.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
rapid transit line ⓘ |
| accessibilityFeature |
elevators at many stations
ⓘ
escalators at many stations ⓘ tactile paving for the visually impaired ⓘ |
| colorOnMap | olive green ⓘ |
| connects |
residential districts of Seoul
ⓘ
urban hubs of Seoul ⓘ |
| connectsWith | other Seoul subway lines at transfer stations ⓘ |
| country | South Korea ⓘ |
| direction | north–south diagonal ⓘ |
| electrification | 750 V DC third rail ⓘ |
| fareMedium |
contactless smart card
ⓘ
single-journey ticket ⓘ |
| fareSystem | integrated metropolitan fare system of Seoul ⓘ |
| hasFunction |
commuter transport
ⓘ
mass transit ⓘ |
| hasInfrastructure |
tunnels
ⓘ
underground stations ⓘ |
| hasPlatformType |
island platforms
ⓘ
side platforms ⓘ |
| hasRollingStock | electric multiple units ⓘ |
| hasRouteCharacteristic |
connects residential areas to business districts
ⓘ
crosses multiple administrative districts in Seoul ⓘ |
| hasRouteNumber | 7 ⓘ |
| hasService | local trains ⓘ |
| hasServiceHours | operates from early morning to late night ⓘ |
| hasSignageLanguage |
English
ⓘ
Korean ⓘ |
| isPartOfNetwork |
Seoul Metropolitan Railway Network
ⓘ
linked to:
Seoul Metropolitan Subway
|
| isUnderground | true ⓘ |
| locatedIn |
Seoul
ⓘ
South Korea ⓘ |
| operator | Seoul Metro ⓘ |
| partOf | Seoul Metropolitan Subway ⓘ |
| peakUsage | rush hour commuting ⓘ |
| primaryUse | daily commuting ⓘ |
| safetyFeature |
CCTV surveillance in trains and stations
ⓘ
emergency communication devices on platforms ⓘ |
| safetySystem | screen doors at most stations ⓘ |
| serves | Seoul Capital Area ⓘ |
| servicePattern | urban rail transit ⓘ |
| system | Seoul Metropolitan Subway ⓘ |
| ticketingSystem | automated fare collection ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | 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: Line 7 Description of subject: Line 7 is a major route of the Seoul Metropolitan Subway system that runs in a north–south diagonal across the city, connecting residential districts with key urban hubs.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.