Lake Pinatubo
E459798
Lake Pinatubo is a crater lake that formed in the caldera of Mount Pinatubo in the Philippines after its massive 1991 volcanic eruption, now known for its striking turquoise waters and dramatic surrounding cliffs.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Pinatubo canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4636540 — 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 Pinatubo Context triple: [Mount Pinatubo, craterLakeName, Lake Pinatubo]
-
A.
Taal Lake
Taal Lake is a large volcanic lake in the Philippines known for containing Taal Volcano, one of the country’s most active and picturesque volcanoes.
-
B.
Kanlaon Volcano
Kanlaon Volcano is an active stratovolcano and one of the most prominent volcanic peaks in the central Philippines, located on Negros Island.
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C.
Taal Volcano
Taal Volcano is an active and historically explosive volcano in the Philippines, famous for its picturesque crater lake setting on the island of Luzon.
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D.
Mount Pinatubo
Mount Pinatubo is an active stratovolcano in the Philippines best known for its cataclysmic 1991 eruption, one of the largest of the 20th century.
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E.
Bulusan Volcano
Bulusan Volcano is an active stratovolcano in Sorsogon province on the island of Luzon in the Philippines, known for its frequent phreatic eruptions and associated hazards.
- 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 Pinatubo Target entity description: Lake Pinatubo is a crater lake that formed in the caldera of Mount Pinatubo in the Philippines after its massive 1991 volcanic eruption, now known for its striking turquoise waters and dramatic surrounding cliffs.
-
A.
Taal Lake
Taal Lake is a large volcanic lake in the Philippines known for containing Taal Volcano, one of the country’s most active and picturesque volcanoes.
-
B.
Kanlaon Volcano
Kanlaon Volcano is an active stratovolcano and one of the most prominent volcanic peaks in the central Philippines, located on Negros Island.
-
C.
Taal Volcano
Taal Volcano is an active and historically explosive volcano in the Philippines, famous for its picturesque crater lake setting on the island of Luzon.
-
D.
Mount Pinatubo
Mount Pinatubo is an active stratovolcano in the Philippines best known for its cataclysmic 1991 eruption, one of the largest of the 20th century.
-
E.
Bulusan Volcano
Bulusan Volcano is an active stratovolcano in Sorsogon province on the island of Luzon in the Philippines, known for its frequent phreatic eruptions and associated hazards.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
caldera lake
ⓘ
crater lake ⓘ |
| accessPoint |
Botolan, Zambales
ⓘ
Capas, Tarlac ⓘ |
| basinCountry | Philippines ⓘ |
| climateZone | tropical monsoon climate ⓘ |
| country | Philippines ⓘ |
| createdBy | filling of the caldera with rainwater ⓘ |
| distanceFromManila | approximately 90 kilometres ⓘ |
| elevation | about 900 metres above sea level ⓘ |
| environmentalConcern |
erosion of crater walls
ⓘ
water quality monitoring ⓘ |
| formationEvent | 1991 eruption of Mount Pinatubo ⓘ |
| formedBy | collapse of summit after explosive eruption ⓘ |
| formedInYear | 1991 ⓘ |
| geologicalSetting | subduction-related volcanic arc ⓘ |
| hasFeature |
relatively calm water surface
ⓘ
steep crater walls ⓘ |
| hazard | risk of lahars in surrounding areas ⓘ |
| knownFor |
dramatic surrounding cliffs
ⓘ
striking turquoise waters ⓘ |
| locatedIn |
Luzon
ⓘ
Pampanga ⓘ Tarlac ⓘ Zambales ⓘ |
| locatedNorthOf | Manila ⓘ |
| locatedOnVolcano | Mount Pinatubo ⓘ |
| managedBy | local government units of surrounding provinces ⓘ |
| maximumDepth | about 600 metres ⓘ |
| nearbyEthnicGroup | Aeta people ⓘ |
| notableChange |
color variations due to mineral content
ⓘ
water level rise after 1991 eruption ⓘ |
| outflow | small streams and seepage ⓘ |
| partOf |
Mount Pinatubo caldera
ⓘ
linked to:
Mount Pinatubo
|
| partOfProtectedArea | Mount Pinatubo area (local protection regimes) ⓘ |
| previously | volcanic crater ⓘ |
| region | Central Luzon ⓘ |
| safetyRegulation | controlled access for visitors ⓘ |
| surfaceArea | approximately 1.5 square kilometres ⓘ |
| tourismActivity |
boat tours
ⓘ
hiking ⓘ trekking ⓘ |
| tourismType | adventure tourism destination ⓘ |
| typeOfWaterBody | freshwater lake ⓘ |
| viewpoint | crater rim ⓘ |
| volcanicArc |
Luzon volcanic arc
ⓘ
linked to:
Luzon Volcanic Arc
|
| volcanicOrigin | andesitic to dacitic volcano ⓘ |
| waterColor | turquoise ⓘ |
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 Pinatubo Description of subject: Lake Pinatubo is a crater lake that formed in the caldera of Mount Pinatubo in the Philippines after its massive 1991 volcanic eruption, now known for its striking turquoise waters and dramatic surrounding cliffs.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.