Line 4
E519211
Line 4 is a proposed circular metro line intended to complete and expand the Seville Metro network in Seville, Spain.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 4 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5401979 — 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 4 Context triple: [Seville Metro, plannedExpansion, Line 4]
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A.
Line 4
Line 4 is a rapid transit route of the STC Metro system, serving as one of its main urban rail lines.
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B.
Line 4
Line 4 is a major line of the Santiago Metro in Chile, serving key residential and commercial areas in the southeastern part of the city.
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C.
Line 4
Line 4 is a major north–south rapid transit route in the Beijing Subway system, serving key commercial, residential, and university areas of the city.
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D.
Line 4
Line 4 is a planned rapid transit route within the future Ho Chi Minh City Metro system in Vietnam.
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E.
Line 4
Line 4 is a rapid transit line of the Barcelona Metro network that serves several central and coastal neighborhoods in 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 4 Target entity description: Line 4 is a proposed circular metro line intended to complete and expand the Seville Metro network in Seville, Spain.
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A.
Line 4
Line 4 is a rapid transit line of the Barcelona Metro network that serves several central and coastal neighborhoods in the city.
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B.
Line 4
Line 4 is a circular rapid transit route of the Shanghai Metro system that loops around central districts and provides key transfer connections across the network.
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C.
Line 4
Line 4 is a planned rapid transit route within the future Ho Chi Minh City Metro system in Vietnam.
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D.
Line 4
Line 4 is a route of the Tunis Metro light rail network serving parts of the Tunis metropolitan area in Tunisia.
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E.
Line 4
Line 4 is a rapid transit route of the STC Metro system, serving as one of its main urban rail lines.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
proposed metro line
ⓘ
rapid transit line ⓘ |
| belongsTo | Andalusian public transport projects ⓘ |
| cityServed | Seville ⓘ |
| connectsWith |
Line 1 (Seville Metro)
ⓘ
Line 2 (Seville Metro) ⓘ Line 3 (Seville Metro) ⓘ |
| constructionStatus | not started ⓘ |
| continent | Europe ⓘ |
| country | Spain ⓘ |
| electrification | to be determined ⓘ |
| expectedUsers | commuters in Seville metropolitan area ⓘ |
| hasAbbreviation | L4 ⓘ |
| hasLineNumber | 4 ⓘ |
| hasRouteType | underground and/or surface alignment (planned) ⓘ |
| intendedFunction |
interchange with radial metro lines
ⓘ
orbital connection around Seville ⓘ |
| languageOfOfficialName | Spanish ⓘ |
| lineColor | to be determined ⓘ |
| locatedIn |
Andalusia
ⓘ
Seville ⓘ Spain ⓘ |
| network | Seville Metro ⓘ |
| officialName | Línea 4 del Metro de Sevilla ⓘ |
| operator | to be determined ⓘ |
| owner | Junta de Andalucía ⓘ |
| partOf | Seville Metro ⓘ |
| planningAuthority | Junta de Andalucía ⓘ |
| planningPhase | study and design ⓘ |
| planningStatus | long-term project ⓘ |
| projectType | public transport infrastructure project ⓘ |
| publicTransportSystem | Seville Metro ⓘ |
| purpose |
complete Seville Metro network
ⓘ
expand Seville Metro network ⓘ |
| regionServed | metropolitan area of Seville ⓘ |
| routeCharacteristic | circular alignment around city ⓘ |
| sector | urban rail transport ⓘ |
| serves | urban transport in Seville ⓘ |
| shape | circular line ⓘ |
| status | proposed ⓘ |
| systemType | metro ⓘ |
| trackGauge | to be determined ⓘ |
| transportMode | rail ⓘ |
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 4 Description of subject: Line 4 is a proposed circular metro line intended to complete and expand the Seville Metro network in Seville, Spain.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.