Kilómetro Cero plaque of Spanish radial roads
E529764
The Kilómetro Cero plaque of Spanish radial roads is the symbolic marker in Madrid’s Puerta del Sol from which Spain’s six major national highways and other radial roads are traditionally measured.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Kilometer Zero of Spanish radial roads | 1 |
| Kilometer Zero of Spanish road network | 1 |
| Kilómetro Cero of Spanish roads | 1 |
| Kilómetro Cero plaque of Spanish radial roads canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5545800 — 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: Kilómetro Cero plaque of Spanish radial roads Context triple: [Casa de Correos, hasNearby, Kilómetro Cero plaque of Spanish radial roads]
-
A.
Plaza Mayor de Torrejón de Ardoz
Plaza Mayor de Torrejón de Ardoz is the historic central square of Torrejón de Ardoz, serving as a focal point for local social life, events, and municipal activities.
-
B.
Plaza de Cibeles, Madrid
Plaza de Cibeles in Madrid is a famous monumental square centered around the iconic Cibeles Fountain and flanked by grand historic buildings, serving as a major city landmark and celebration site.
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C.
Calzada de Calatrava
Calzada de Calatrava is a small town in Spain’s Ciudad Real province, best known as the birthplace of acclaimed film director Pedro Almodóvar.
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D.
Madrid–Valencia road
The Madrid–Valencia road is a major Spanish highway that connects the capital city of Madrid with the Mediterranean port city of Valencia, serving as a key route for both regional and long-distance traffic.
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E.
El Prado pedestrian promenade
El Prado pedestrian promenade is a central, scenic walkway in San Diego’s Balboa Park, lined with historic Spanish Colonial Revival buildings, gardens, and cultural institutions.
- 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: Kilómetro Cero plaque of Spanish radial roads Target entity description: The Kilómetro Cero plaque of Spanish radial roads is the symbolic marker in Madrid’s Puerta del Sol from which Spain’s six major national highways and other radial roads are traditionally measured.
-
A.
Plaza Mayor de Torrejón de Ardoz
Plaza Mayor de Torrejón de Ardoz is the historic central square of Torrejón de Ardoz, serving as a focal point for local social life, events, and municipal activities.
-
B.
Plaza de Cibeles, Madrid
Plaza de Cibeles in Madrid is a famous monumental square centered around the iconic Cibeles Fountain and flanked by grand historic buildings, serving as a major city landmark and celebration site.
-
C.
Calzada de Calatrava
Calzada de Calatrava is a small town in Spain’s Ciudad Real province, best known as the birthplace of acclaimed film director Pedro Almodóvar.
-
D.
Madrid–Valencia road
The Madrid–Valencia road is a major Spanish highway that connects the capital city of Madrid with the Mediterranean port city of Valencia, serving as a key route for both regional and long-distance traffic.
-
E.
El Prado pedestrian promenade
El Prado pedestrian promenade is a central, scenic walkway in San Diego’s Balboa Park, lined with historic Spanish Colonial Revival buildings, gardens, and cultural institutions.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
kilometre zero
ⓘ
road marker ⓘ tourist attraction ⓘ |
| associatedWith |
Spanish national highways
ⓘ
Spanish radial roads ⓘ |
| category |
Kilometre zero in Spain
NERFINISHED
ⓘ
Monuments and memorials in Madrid ⓘ Tourist attractions in Madrid ⓘ Transport in Madrid ⓘ |
| country | Spain ⓘ |
| function | reference point for measuring distances of Spanish radial roads ⓘ |
| governedBy | municipality of Madrid ⓘ |
| hasCoordinateSystem | Spanish national road network NERFINISHED ⓘ |
| hasCulturalSignificance |
reference point in Spanish popular culture
ⓘ
symbol of Madrid city center ⓘ |
| hasInscription |
map-like representation of Spanish radial roads
ⓘ
text indicating Km. 0 ⓘ |
| hasLanguage | Spanish ⓘ |
| hasNameInSpanish | Kilómetro Cero de las carreteras radiales españolas NERFINISHED ⓘ |
| hasPhotographicSubject | tourists standing on the plaque ⓘ |
| hasShape | semi-circular plaque ⓘ |
| heritageStatus | well-known landmark of Madrid ⓘ |
| inception | 20th century ⓘ |
| isAccessibleTo | pedestrians ⓘ |
| isCentralPointOf | distance calculations to many Spanish cities ⓘ |
| locatedIn |
Community of Madrid
ⓘ
Madrid ⓘ Puerta del Sol NERFINISHED ⓘ Spain ⓘ |
| material |
metal plaque
ⓘ
stone pavement ⓘ |
| measuresFrom |
other radial roads of Spain
ⓘ
six major Spanish national highways ⓘ |
| near |
Puerta del Sol metro station
NERFINISHED
ⓘ
Real Casa de Correos NERFINISHED ⓘ statue of Charles III of Spain NERFINISHED ⓘ |
| partOf | Puerta del Sol square NERFINISHED ⓘ |
| roadSystem | Spanish radial road system ⓘ |
| symbolizes |
kilometre zero of Spain’s six major national highways
NERFINISHED
ⓘ
origin of Spanish radial road network ⓘ |
| touristActivity |
photography
ⓘ
sightseeing ⓘ |
| usedFor | measuring road distances from Madrid ⓘ |
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: Kilómetro Cero plaque of Spanish radial roads Description of subject: The Kilómetro Cero plaque of Spanish radial roads is the symbolic marker in Madrid’s Puerta del Sol from which Spain’s six major national highways and other radial roads are traditionally measured.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Kilometer Zero of Spanish road network
this entity surface form:
Kilometer Zero of Spanish radial roads
this entity surface form:
Kilómetro Cero of Spanish roads