Lake Texcoco
E49096
Lake Texcoco was a large, now mostly drained lake in the Valley of Mexico that once surrounded the Aztec capital Tenochtitlan and is central to Mexico’s national origin myth.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Lake Texcoco canonical | 14 |
| Lake Texcoco (former) area | 1 |
| Lake Texcoco (former) region | 1 |
| Lake Texcoco basin | 1 |
| Lake Texcoco system | 1 |
| former Lake Texcoco | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T388103 — 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: Lake Texcoco Context triple: [Mexican national coat of arms, lakeName, Lake Texcoco]
-
A.
Valley of Mexico
The Valley of Mexico is a highland basin in central Mexico that historically hosted several major pre-Columbian civilizations and today contains the country’s largest urban concentration.
-
B.
Lake Managua
Lake Managua is a large freshwater lake in western Nicaragua, notable for bordering the capital city of Managua and being one of Central America’s major inland water bodies.
-
C.
Lake Nicaragua
Lake Nicaragua is the largest freshwater lake in Central America, known for its volcanic islands, biodiversity, and connection to both the Caribbean Sea and Pacific Ocean via the San Juan River.
-
D.
San Andreas Lake
San Andreas Lake is a long, narrow reservoir on the San Francisco Peninsula in California, best known for lending its name to the nearby San Andreas Fault.
-
E.
Laguna del Condado
Laguna del Condado is a coastal lagoon in the Condado district of San Juan, Puerto Rico, known for its calm waters, urban shoreline, and recreational activities like kayaking and paddleboarding.
- 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: Lake Texcoco Target entity description: Lake Texcoco was a large, now mostly drained lake in the Valley of Mexico that once surrounded the Aztec capital Tenochtitlan and is central to Mexico’s national origin myth.
-
A.
Valley of Mexico
The Valley of Mexico is a highland basin in central Mexico that historically hosted several major pre-Columbian civilizations and today contains the country’s largest urban concentration.
-
B.
Lake Managua
Lake Managua is a large freshwater lake in western Nicaragua, notable for bordering the capital city of Managua and being one of Central America’s major inland water bodies.
-
C.
Lake Nicaragua
Lake Nicaragua is the largest freshwater lake in Central America, known for its volcanic islands, biodiversity, and connection to both the Caribbean Sea and Pacific Ocean via the San Juan River.
-
D.
San Andreas Lake
San Andreas Lake is a long, narrow reservoir on the San Francisco Peninsula in California, best known for lending its name to the nearby San Andreas Fault.
-
E.
Laguna del Condado
Laguna del Condado is a coastal lagoon in the Condado district of San Juan, Puerto Rico, known for its calm waters, urban shoreline, and recreational activities like kayaking and paddleboarding.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
endorheic basin
ⓘ
former lake ⓘ geographical feature ⓘ |
| adjacentTo |
Lake Chalco
ⓘ
linked to:
former Lake Chalco
Lake Xaltocan ⓘ Lake Xochimilco ⓘ Lake Zumpango ⓘ
linked to:
former Lake Zumpango
|
| archaeologicalSignificance | remains of Aztec causeways and chinampas ⓘ |
| associatedWithCulture |
Aztec civilization
ⓘ
linked to:
Aztec Empire
Mexica people ⓘ
linked to:
Mexica
|
| basinCountry | Mexico ⓘ |
| capitalCityOnIslands |
Tenochtitlan
ⓘ
Tlatelolco ⓘ |
| conqueredBy | Spanish conquistadors ⓘ |
| conquestYear | 1521 (fall of Tenochtitlan) ⓘ |
| drainage | endorheic (no natural outlet) ⓘ |
| drainageBegan | 16th century ⓘ |
| elevation | about 2,240 metres above sea level ⓘ |
| environmentalIssues |
dust storms from dry lakebed
ⓘ
land subsidence in Mexico City ⓘ loss of wetland habitat ⓘ |
| hasCoordinateRegion | central Mexico ⓘ |
| hasLanguageName |
Classical Nahuatl: Tetzco(h)co
ⓘ
Spanish: Lago de Texcoco ⓘ |
| historicalPeriodOfImportance |
Aztec Empire period
ⓘ
linked to:
Postclassic period of Mesoamerica
Postclassic Mesoamerica ⓘ
linked to:
Postclassic period of Mesoamerica
|
| hydrologicalType | closed basin lake ⓘ |
| knownFor |
role in Mexico’s national origin myth
ⓘ
site of the eagle on cactus founding legend of Tenochtitlan ⓘ surrounding the Aztec capital Tenochtitlan ⓘ |
| locatedIn | Valley of Mexico ⓘ |
| locatedInCountry | Mexico ⓘ |
| locatedInPresentDay |
Mexico City metropolitan area
ⓘ
linked to:
Greater Mexico City metropolitan area
|
| locatedNear |
Sierra Nevada volcanic range
ⓘ
Sierra de Guadalupe ⓘ Sierra de las Cruces ⓘ |
| majorDrainageProjects |
Desagüe del Valle de México
ⓘ
linked to:
Valley of Mexico
Grand Canal of the Valley of Mexico ⓘ |
| modernLandUse |
agricultural land
ⓘ
infrastructure projects ⓘ urban development ⓘ |
| mostlyDrainedBy | 20th century ⓘ |
| mythologicalSignificance | place where Mexica saw eagle on cactus devouring a serpent ⓘ |
| partOf |
Mexican Plateau
ⓘ
lake system of the Valley of Mexico ⓘ |
| siteOf | former Mexico City New International Airport project ⓘ |
| surrounded |
Tenochtitlan
ⓘ
Tlatelolco ⓘ |
| symbolAppearsOn |
coat of arms of Mexico
ⓘ
linked to:
Mexican national coat of arms
flag of Mexico ⓘ |
| waterType |
brackish
ⓘ
saline ⓘ |
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: Lake Texcoco Description of subject: Lake Texcoco was a large, now mostly drained lake in the Valley of Mexico that once surrounded the Aztec capital Tenochtitlan and is central to Mexico’s national origin myth.
Referenced by (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
former Lake Zumpango
linked to: Lake Texcoco
linked to: Lake Texcoco
linked to: Lake Texcoco
linked to: Lake Texcoco
linked to: Lake Texcoco