Barcelona Metro L4
E1044256
Barcelona Metro L4 is one of the main rapid transit lines in Barcelona’s metro network, running largely along the city’s northeastern corridor and serving key central and coastal neighborhoods.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Barcelona Metro line L4 | 16 |
| Barcelona Metro Line 4 | 7 |
| Barcelona Metro line 4 | 7 |
| Barcelona Metro L4 canonical | 3 |
| Barcelona Metro line 4 stations | 1 |
| Barcelona Metro line L4 (Ciutadella–Vila Olímpica) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12028682 — 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: Barcelona Metro L4 Context triple: [Passeig de Gràcia, hasPublicTransport, Barcelona Metro L4]
-
A.
Barcelona Metro Line 5
Barcelona Metro Line 5 is a major rapid transit line in the Barcelona Metro network, running broadly from the city’s northwest to the southwest and serving key residential and interchange stations.
-
B.
Barcelona Metro line L7
Barcelona Metro line L7 is a short urban railway line in Barcelona’s metro network that connects the city center with the uptown Sarrià district via the FGC-operated Vallès lines.
-
C.
Barcelona Metro L1
Barcelona Metro L1 is one of the main lines of the Barcelona Metro network, running on a largely east–west axis and connecting key districts and transport hubs across the city.
-
D.
Barcelona Metro Line L9 Sud
Barcelona Metro Line L9 Sud is a southern section of Barcelona’s automated metro network that links the city with key suburban areas and major transport hubs, including Barcelona–El Prat Airport.
-
E.
Barcelona Metro line L8
Barcelona Metro line L8 is a rapid transit line in Barcelona operated by FGC that connects the city center with western suburbs such as Molins de Rei and Sant Boi.
- 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: Barcelona Metro L4 Target entity description: Barcelona Metro L4 is one of the main rapid transit lines in Barcelona’s metro network, running largely along the city’s northeastern corridor and serving key central and coastal neighborhoods.
-
A.
Barcelona Metro Line 5
Barcelona Metro Line 5 is a major rapid transit line in the Barcelona Metro network, running broadly from the city’s northwest to the southwest and serving key residential and interchange stations.
-
B.
Barcelona Metro line L7
Barcelona Metro line L7 is a short urban railway line in Barcelona’s metro network that connects the city center with the uptown Sarrià district via the FGC-operated Vallès lines.
-
C.
Barcelona Metro L1
Barcelona Metro L1 is one of the main lines of the Barcelona Metro network, running on a largely east–west axis and connecting key districts and transport hubs across the city.
-
D.
Barcelona Metro Line L9 Sud
Barcelona Metro Line L9 Sud is a southern section of Barcelona’s automated metro network that links the city with key suburban areas and major transport hubs, including Barcelona–El Prat Airport.
-
E.
Barcelona Metro line L8
Barcelona Metro line L8 is a rapid transit line in Barcelona operated by FGC that connects the city center with western suburbs such as Molins de Rei and Sant Boi.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Barcelona Metro line
ⓘ
rapid transit line ⓘ |
| alsoKnownAs |
L4
ⓘ
Línia 4 ⓘ Línia groga ⓘ |
| character |
partially at grade
ⓘ
underground ⓘ |
| connectsTo |
Barceloneta beach area
ⓘ
linked to:
Barceloneta Beach
Ciutat Vella district ⓘ Eixample district ⓘ
linked to:
Eixample
Nou Barris district ⓘ Sant Martí district ⓘ |
| country | Spain ⓘ |
| electrification | 750 V DC third rail ⓘ |
| fareSystem | zone-based integrated fares ⓘ |
| formerTerminusStation |
Trinitat Nova (branch configuration may have changed historically)
ⓘ
linked to:
Trinitat Nova
|
| interchangeWith |
Barcelona Metro L1
ⓘ
Barcelona Metro L10 ⓘ
linked to:
Barcelona Metro Line 10 Nord
Barcelona Metro L2 ⓘ
linked to:
Barcelona Metro Line 2
Barcelona Metro L3 ⓘ
linked to:
Barcelona Metro line L3
Barcelona Metro L5 ⓘ
linked to:
Barcelona Metro Line 5
Barcelona Metro L9 ⓘ
linked to:
Barcelona Metro line L9
|
| lineColor | yellow ⓘ |
| lineNumber | 4 ⓘ |
| locale | Barcelona ⓘ |
| notableStation |
Barceloneta
ⓘ
linked to:
Barceloneta neighborhood
Ciutadella–Vila Olímpica ⓘ
linked to:
Ciutadella–Vila Olímpica–Olimpíada
Jaume I ⓘ
linked to:
James I of Aragon
Passeig de Gràcia ⓘ Urquinaona ⓘ Verdaguer ⓘ |
| openingDate | 1967 ⓘ |
| operator | Transports Metropolitans de Barcelona ⓘ |
| ownedBy | Autoritat del Transport Metropolità (ATM) area public authorities ⓘ |
| partOf |
ATM integrated fare system of Barcelona
ⓘ
linked to:
Metropolitan integrated fare system
|
| primaryFunction | public transport ⓘ |
| rollingStock |
Barcelona Metro 2100 series trains
ⓘ
linked to:
Barcelona Metro 2100 series
Barcelona Metro 9000 series trains ⓘ
linked to:
Barcelona Metro Series 9000 trains
|
| serves |
commuters
ⓘ
tourists ⓘ |
| servesArea |
central Barcelona neighborhoods
ⓘ
coastal neighborhoods of Barcelona ⓘ northeastern corridor of Barcelona ⓘ |
| serviceType | urban metro ⓘ |
| system | Barcelona Metro ⓘ |
| terminusStation |
La Pau
ⓘ
Trinitat Nova ⓘ |
| trackGauge | 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: Barcelona Metro L4 Description of subject: Barcelona Metro L4 is one of the main rapid transit lines in Barcelona’s metro network, running largely along the city’s northeastern corridor and serving key central and coastal neighborhoods.
Referenced by (35)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
subject linked to:
Nou Barris district
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4
subject linked to:
El Besòs i el Maresme (shared urban area with Barcelona)
linked to: Barcelona Metro L4
linked to: Barcelona Metro L4