Lake Ilopango
E400016
Lake Ilopango is a large volcanic caldera lake in central El Salvador known for its dramatic geological history and scenic surroundings.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Lake Ilopango canonical | 3 |
| Ilopango | 1 |
| Ilopango Caldera | 1 |
| Ilopango Lake | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3916419 — 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 Ilopango Context triple: [Ilopango International Airport, locatedNear, Lake Ilopango]
-
A.
Lake Arenal
Lake Arenal is Costa Rica’s largest and most famous lake, known for its scenic views of Arenal Volcano and its popularity for windsurfing, fishing, and eco-tourism.
-
B.
Lake Atitlán
Lake Atitlán is a deep volcanic lake in the Guatemalan highlands, renowned for its dramatic surrounding volcanoes, traditional Mayan villages, and striking natural beauty.
-
C.
Lake Zirahuén
Lake Zirahuén is a scenic, high-altitude freshwater lake in Michoacán, Mexico, known for its clear waters, surrounding pine forests, and growing ecotourism activities.
-
D.
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.
-
E.
Villarrica Lake
Villarrica Lake is a large glacial lake in southern Chile, popular for tourism, water sports, and its scenic setting near the Villarrica Volcano.
- 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 Ilopango Target entity description: Lake Ilopango is a large volcanic caldera lake in central El Salvador known for its dramatic geological history and scenic surroundings.
-
A.
Lake Arenal
Lake Arenal is Costa Rica’s largest and most famous lake, known for its scenic views of Arenal Volcano and its popularity for windsurfing, fishing, and eco-tourism.
-
B.
Lake Atitlán
Lake Atitlán is a deep volcanic lake in the Guatemalan highlands, renowned for its dramatic surrounding volcanoes, traditional Mayan villages, and striking natural beauty.
-
C.
Lake Zirahuén
Lake Zirahuén is a scenic, high-altitude freshwater lake in Michoacán, Mexico, known for its clear waters, surrounding pine forests, and growing ecotourism activities.
-
D.
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.
-
E.
Villarrica Lake
Villarrica Lake is a large glacial lake in southern Chile, popular for tourism, water sports, and its scenic setting near the Villarrica Volcano.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
caldera lake
ⓘ
lake in El Salvador ⓘ volcanic lake ⓘ |
| basinCountry | El Salvador ⓘ |
| country | El Salvador ⓘ |
| elevationAboveSeaLevel | approximately 440 meters ⓘ |
| formedBy | volcanic caldera collapse ⓘ |
| geologicalOrigin | stratovolcano caldera ⓘ |
| hasArchaeologicalSignificance | impact on ancient Mesoamerican populations ⓘ |
| hasFeature |
scenic viewpoints
ⓘ
steep caldera walls ⓘ submerged volcanic domes ⓘ |
| hasIsland |
Isla Quemada
ⓘ
Isla de los Patos ⓘ |
| hasScenicSurroundings |
forested slopes
ⓘ
viewpoints over the caldera ⓘ volcanic landscapes ⓘ |
| hasSedimentRecord | paleoclimate information for Central America ⓘ |
| hasVolcanicComplex |
Ilopango volcano
ⓘ
linked to:
Ilopango
|
| languageOfToponym | Spanish ⓘ |
| lastEruptionCentury | 19th century ⓘ |
| locatedIn |
Cuscatlán Department
ⓘ
San Salvador Department ⓘ central El Salvador ⓘ |
| locatedOnContinent | North America ⓘ |
| maximumDepth | approximately 230 meters ⓘ |
| monitoredBy | Servicio Nacional de Estudios Territoriales of El Salvador ⓘ |
| nearCity |
Ilopango
ⓘ
San Salvador ⓘ Soyapango ⓘ |
| notableEruption | Ilopango eruption around 535 CE ⓘ |
| notableEruptionEffect |
regional climatic impact in Mesoamerica
ⓘ
widespread ashfall in El Salvador and surrounding areas ⓘ |
| notableEruptionVEI | VEI 6 or higher ⓘ |
| outflow | Jiboa River ⓘ |
| partOf |
Central America Volcanic Arc
ⓘ
linked to:
Central American Volcanic Arc
Central American Volcanic Belt ⓘ
linked to:
Central American Volcanic Arc
|
| popularActivity |
boating
ⓘ
scuba diving ⓘ |
| riskType |
ashfall hazard to nearby population centers
ⓘ
potential future explosive eruptions ⓘ |
| surfaceArea | approximately 72 square kilometers ⓘ |
| usedFor |
fishing
ⓘ
recreation ⓘ tourism ⓘ |
| volcanoType | caldera volcano ⓘ |
| waterType | freshwater ⓘ |
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 Ilopango Description of subject: Lake Ilopango is a large volcanic caldera lake in central El Salvador known for its dramatic geological history and scenic surroundings.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Ilopango International Airport (military and general aviation)
linked to: Lake Ilopango
linked to: Lake Ilopango