Aqueduto das Águas Livres
E462968
Aqueduto das Águas Livres is an 18th-century Portuguese aqueduct in Lisbon renowned for its monumental arches and role in supplying the city with fresh water.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Aqueduto das Águas Livres canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4691023 — 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: Aqueduto das Águas Livres Context triple: [Lioz limestone, usedInMonument, Aqueduto das Águas Livres]
-
A.
Aqua Traiana aqueduct
The Aqua Traiana aqueduct was an ancient Roman water supply system built under Emperor Trajan to bring water from sources near Lake Bracciano to the city of Rome.
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B.
Aqua Paola aqueduct
The Aqua Paola aqueduct is a 17th-century Roman aqueduct and monumental fountain system that restored an ancient water supply to the city, culminating in the grand Fontana dell’Acqua Paola on the Janiculum Hill.
-
C.
Aqueduct of Pitigliano
The Aqueduct of Pitigliano is a historic Renaissance-era aqueduct in the Tuscan hill town of Pitigliano, Italy, notable for its striking arches integrated into the town’s dramatic tufa cliffs.
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D.
Espada Aqueduct
Espada Aqueduct is a historic 18th-century stone irrigation structure in San Antonio, Texas, built by Spanish missionaries to supply water to Mission Espada and its surrounding farmlands.
-
E.
Acqua Felice aqueduct
The Acqua Felice aqueduct is a late 16th-century Roman aqueduct restored under Pope Sixtus V to bring fresh water back into the city, feeding several monumental fountains.
- 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: Aqueduto das Águas Livres Target entity description: Aqueduto das Águas Livres is an 18th-century Portuguese aqueduct in Lisbon renowned for its monumental arches and role in supplying the city with fresh water.
-
A.
Aqua Traiana aqueduct
The Aqua Traiana aqueduct was an ancient Roman water supply system built under Emperor Trajan to bring water from sources near Lake Bracciano to the city of Rome.
-
B.
Aqua Paola aqueduct
The Aqua Paola aqueduct is a 17th-century Roman aqueduct and monumental fountain system that restored an ancient water supply to the city, culminating in the grand Fontana dell’Acqua Paola on the Janiculum Hill.
-
C.
Aqueduct of Pitigliano
The Aqueduct of Pitigliano is a historic Renaissance-era aqueduct in the Tuscan hill town of Pitigliano, Italy, notable for its striking arches integrated into the town’s dramatic tufa cliffs.
-
D.
Espada Aqueduct
Espada Aqueduct is a historic 18th-century stone irrigation structure in San Antonio, Texas, built by Spanish missionaries to supply water to Mission Espada and its surrounding farmlands.
-
E.
Acqua Felice aqueduct
The Acqua Felice aqueduct is a late 16th-century Roman aqueduct restored under Pope Sixtus V to bring fresh water back into the city, feeding several monumental fountains.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
aqueduct
ⓘ
architecturalStructure ⓘ |
| architecturalStyle | Baroque ⓘ |
| builtFor | water supply of Lisbon ⓘ |
| commissionedBy | King John V of Portugal NERFINISHED ⓘ |
| completionDate | late 18th century ⓘ |
| constructionStart |
1731
ⓘ
18th century ⓘ |
| country | Portugal ⓘ |
| crosses | Valley of Alcântara NERFINISHED ⓘ |
| designedBy |
António Canevari
NERFINISHED
ⓘ
Custódio Vieira NERFINISHED ⓘ Manuel da Maia NERFINISHED ⓘ |
| endPoint | Mãe d’Água das Amoreiras NERFINISHED ⓘ |
| follows | Valley of Alcântara NERFINISHED ⓘ |
| hasPart |
Alcântara valley arches
NERFINISHED
ⓘ
Mãe d’Água das Amoreiras reservoir NERFINISHED ⓘ supporting aqueduct branches ⓘ underground galleries ⓘ |
| heritageDesignation | National Monument of Portugal NERFINISHED ⓘ |
| heritageDesignationDate | 1910 ⓘ |
| historicalPeriod | Portuguese Baroque era NERFINISHED ⓘ |
| inaugurationDate | 1748 ⓘ |
| length | about 18 kilometres ⓘ |
| locatedIn |
Lisbon
ⓘ
Lisbon District NERFINISHED ⓘ Lisbon metropolitan area NERFINISHED ⓘ region of Lisbon ⓘ |
| locatedInNeighborhood |
Alcântara
NERFINISHED
ⓘ
Campolide NERFINISHED ⓘ |
| materialUsed | stone ⓘ |
| maximumHeight | about 65 metres ⓘ |
| notableFeature |
monumental stone arches
ⓘ
one of the tallest stone aqueduct arches in the world at the time of construction ⓘ |
| numberOfArches | 35 arches in the Alcântara valley section ⓘ |
| openToPublic | yes ⓘ |
| ownedBy | Municipality of Lisbon NERFINISHED ⓘ |
| partOf | Lisbon water supply system ⓘ |
| passesThrough |
Amoreiras
NERFINISHED
ⓘ
Belas NERFINISHED ⓘ Caneças NERFINISHED ⓘ |
| purpose | to supply Lisbon with fresh water ⓘ |
| significance |
major 18th-century hydraulic engineering work in Portugal
ⓘ
symbol of Lisbon’s historical water infrastructure ⓘ |
| startPoint | Mãe d’Água Velha de Belas NERFINISHED ⓘ |
| tourismAttraction | yes ⓘ |
| waterSource |
springs of Belas
NERFINISHED
ⓘ
springs of Caneças NERFINISHED ⓘ |
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: Aqueduto das Águas Livres Description of subject: Aqueduto das Águas Livres is an 18th-century Portuguese aqueduct in Lisbon renowned for its monumental arches and role in supplying the city with fresh water.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.