Irazu
E418829
Irazu is an alternative spelling of Irazú, a stratovolcano in Costa Rica known for its frequent eruptions and crater lakes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Irazu canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4184013 — 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: Irazu Context triple: [Irazú, hasAlternativeSpelling, Irazu]
-
A.
Irrua
Irrua is a prominent town in southern Nigeria known for hosting the Irrua Specialist Teaching Hospital and serving as an important local commercial and administrative center in Edo State.
-
B.
Itzaʼ
Itzaʼ is a critically endangered Mayan language historically spoken by the Itza people around Lake Petén Itzá in northern Guatemala.
-
C.
Ibora
Ibora was an ancient town in Pontus (in modern-day Turkey) known as the birthplace of the influential Christian monk and theologian Evagrius Ponticus.
-
D.
Norzagaray
Norzagaray is a landlocked municipality in the province of Bulacan in the Philippines, known for its quarrying industry and natural attractions such as dams, rivers, and limestone formations.
-
E.
Labayu
Labayu was a 14th-century BCE Canaanite ruler known from the Amarna letters for his aggressive expansionism and conflicts with neighboring city-states.
- 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: Irazu Target entity description: Irazu is an alternative spelling of Irazú, a stratovolcano in Costa Rica known for its frequent eruptions and crater lakes.
-
A.
Irrua
Irrua is a prominent town in southern Nigeria known for hosting the Irrua Specialist Teaching Hospital and serving as an important local commercial and administrative center in Edo State.
-
B.
Itzaʼ
Itzaʼ is a critically endangered Mayan language historically spoken by the Itza people around Lake Petén Itzá in northern Guatemala.
-
C.
Ibora
Ibora was an ancient town in Pontus (in modern-day Turkey) known as the birthplace of the influential Christian monk and theologian Evagrius Ponticus.
-
D.
Norzagaray
Norzagaray is a landlocked municipality in the province of Bulacan in the Philippines, known for its quarrying industry and natural attractions such as dams, rivers, and limestone formations.
-
E.
Labayu
Labayu was a 14th-century BCE Canaanite ruler known from the Amarna letters for his aggressive expansionism and conflicts with neighboring city-states.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
active volcano
ⓘ
stratovolcano ⓘ |
| country | Costa Rica ⓘ |
| elevation |
11260 ft
ⓘ
3432 m ⓘ |
| eruptionCoincidedWith | inauguration of President John F. Kennedy ⓘ |
| eruptionStartDate | 1963-03-13 ⓘ |
| formedBy | subduction of Cocos Plate beneath Caribbean Plate ⓘ |
| geologicalSetting |
Central American Volcanic Arc
ⓘ
surface form:
Central America Volcanic Arc
|
| hasAccessibility | road to summit area ⓘ |
| hasAlternativeSpelling | Irazu self-linksurface differs ⓘ |
| hasColorOfCraterLake |
green
ⓘ
turquoise ⓘ yellow ⓘ |
| hasCrater |
Diego de la Haya Crater
ONNED1
ⓘ
Principal Crater ⓘ |
| hasCraterLake | Principal Crater Lake ⓘ |
| hasFeature |
ash deposits
ⓘ
crater lakes ⓘ |
| hasGeologicalAge | Quaternary ⓘ |
| hasHazard |
ashfall
ⓘ
lahars ⓘ pyroclastic material ⓘ |
| hasManagementBody |
National System of Conservation Areas of Costa Rica
ⓘ
surface form:
Costa Rica National System of Conservation Areas
|
| hasNearbyCity |
Cartago
ⓘ
San José ⓘ |
| hasSpanishName | Volcán Irazú NERFINISHED ⓘ |
| hasSummitClimate | cold and windy ⓘ |
| hasVegetationZone | high-altitude grassland ⓘ |
| hasViewOf |
Caribbean Sea
ⓘ
Pacific Ocean ⓘ |
| isOneOf | highest volcanoes in Costa Rica ⓘ |
| isTouristAttraction | true ⓘ |
| languageOfName | Spanish ⓘ |
| lastEruption | 1963–1965 ⓘ |
| locatedIn | Cartago Province ⓘ |
| locatedInTimeZone | UTC−06:00 ⓘ |
| locatedNear |
Cartago
ⓘ
San José ⓘ |
| locatedOnContinent | North America ⓘ |
| mountainRange | Cordillera Central ⓘ |
| notableEruption | 1963 eruption ⓘ |
| partOf | Cordillera Central ⓘ |
| prominence | 3432 m ⓘ |
| protectedArea |
Irazú
ⓘ
surface form:
Irazú Volcano National Park
|
| volcanoType | stratovolcano ⓘ |
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: Irazu Description of subject: Irazu is an alternative spelling of Irazú, a stratovolcano in Costa Rica known for its frequent eruptions and crater lakes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Irazú