Puente de Alcántara
E81287
Puente de Alcántara is a historic Roman stone arch bridge spanning the Tagus River at Toledo, Spain, renowned for its medieval towers and role as a key entrance to the old city.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Puente de Alcántara canonical | 5 |
| Alcántara Bridge | 3 |
| Alcántara | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T534451 — 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: Puente de Alcántara Context triple: [Toledo, hasLandmark, Puente de Alcántara]
-
A.
Grand Bridge
The Grand Bridge is an imposing ornamental stone bridge and landscape feature within the grounds of Blenheim Palace in Oxfordshire, England, designed to enhance the estate’s grand Baroque setting.
-
B.
Maria Pia Bridge
Maria Pia Bridge is a historic 19th-century iron railway arch bridge spanning the Douro River in Porto, Portugal, renowned for its pioneering engineering and elegant single-span design.
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C.
25 de Abril Bridge
The 25 de Abril Bridge is a large suspension bridge in Lisbon, Portugal, often compared to San Francisco’s Golden Gate Bridge for its similar appearance and iconic status.
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D.
Vasco da Gama Bridge
The Vasco da Gama Bridge is a modern cable-stayed bridge in Lisbon, Portugal, and one of the longest bridges in Europe, spanning the Tagus River.
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E.
Son bridge
Son bridge is a strategically important bridge in the Netherlands that played a crucial role during the World War II Allied offensive known as Operation Market Garden.
- 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: Puente de Alcántara Target entity description: Puente de Alcántara is a historic Roman stone arch bridge spanning the Tagus River at Toledo, Spain, renowned for its medieval towers and role as a key entrance to the old city.
-
A.
Grand Bridge
The Grand Bridge is an imposing ornamental stone bridge and landscape feature within the grounds of Blenheim Palace in Oxfordshire, England, designed to enhance the estate’s grand Baroque setting.
-
B.
Maria Pia Bridge
Maria Pia Bridge is a historic 19th-century iron railway arch bridge spanning the Douro River in Porto, Portugal, renowned for its pioneering engineering and elegant single-span design.
-
C.
25 de Abril Bridge
The 25 de Abril Bridge is a large suspension bridge in Lisbon, Portugal, often compared to San Francisco’s Golden Gate Bridge for its similar appearance and iconic status.
-
D.
Vasco da Gama Bridge
The Vasco da Gama Bridge is a modern cable-stayed bridge in Lisbon, Portugal, and one of the longest bridges in Europe, spanning the Tagus River.
-
E.
Son bridge
Son bridge is a strategically important bridge in the Netherlands that played a crucial role during the World War II Allied offensive known as Operation Market Garden.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Roman arch bridge
ⓘ
road bridge ⓘ stone bridge ⓘ |
| architecturalStyle |
Roman architecture
ⓘ
medieval architecture ⓘ |
| connects |
eastern bank of the Tagus River
ⓘ
Toledo, Spain ⓘ
surface form:
old city of Toledo
|
| country | Spain ⓘ |
| crosses | Tagus River ⓘ |
| function |
city entrance
ⓘ
river crossing ⓘ |
| hasConservationStatus | protected monument ⓘ |
| hasFeature |
coat of arms of Spanish monarchs
ⓘ
defensive battlements ⓘ inscriptions ⓘ |
| hasHistoricalPeriod |
Middle Ages
ⓘ
Roman Antiquity ⓘ
surface form:
Roman period
|
| hasNameEtymology | from Arabic al-Qanṭarah (the bridge) ⓘ |
| hasNameMeaning | Bridge of the Arch ⓘ |
| hasParapet | stone parapet ⓘ |
| hasPart |
gate tower
ⓘ
medieval defensive tower ⓘ |
| hasRoadway | paved deck ⓘ |
| hasStructure | stone arches ⓘ |
| hasViewOf |
Tagus River gorge
ⓘ
Toledo city walls ⓘ |
| heritageDesignation |
Bien de Interés Cultural
ⓘ
Monument (Spain) ⓘ |
| isPartOf | cultural heritage of Spain ⓘ |
| isPopularFor |
historical tourism
ⓘ
panoramic views of Toledo ⓘ |
| languageOfName | Spanish ⓘ |
| locatedIn |
Castile-La Mancha
ⓘ
Spain ⓘ Toledo ⓘ historic centre of Toledo ⓘ |
| locatedOn | eastern side of Toledo ⓘ |
| material | stone ⓘ |
| namedAfter | Alcántara ⓘ |
| near |
Alcázar of Toledo
ⓘ
Toledo railway station ⓘ |
| partOf |
Toledo city walls
ⓘ
surface form:
fortifications of Toledo
|
| significance |
important communication route over Tagus
ⓘ
key entrance to old Toledo ⓘ |
| spans | Tagus River ⓘ |
| touristAttraction | Toledo ⓘ |
| usedFor |
pedestrian traffic
ⓘ
vehicular traffic ⓘ |
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: Puente de Alcántara Description of subject: Puente de Alcántara is a historic Roman stone arch bridge spanning the Tagus River at Toledo, Spain, renowned for its medieval towers and role as a key entrance to the old city.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Alcántara Bridge
this entity surface form:
Alcántara
this entity surface form:
Alcántara Bridge
this entity surface form:
Alcántara Bridge