Sulfur Island
E181859
Sulfur Island is the English translation of the Japanese name for Iwo Jima, a small volcanic island in the Pacific Ocean known for a major World War II battle.
All labels observed (3)
| Label | Occurrences |
|---|---|
| 硫黄島 | 4 |
| Sulfur Island canonical | 1 |
| 硫黄島栗林忠道中将像 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T963065 — 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: Sulfur Island Context triple: [Iwo Jima, nameMeaning, Sulfur Island]
-
A.
Omelek Island
Omelek Island is a small atoll in the Marshall Islands that served as SpaceX’s early orbital launch site for its Falcon 1 rocket.
-
B.
Chamisso Island
Chamisso Island is a small island in the Chukchi Sea off the coast of Alaska, known for its rich Arctic wildlife and designation as part of the Chukchi Sea unit of the Alaska Maritime National Wildlife Refuge.
-
C.
Santay Island
Santay Island is a protected ecological reserve and Ramsar wetland in the Guayas River near Guayaquil, Ecuador, known for its mangroves, birdlife, and small fishing communities.
-
D.
Savo Island
Savo Island is a small volcanic island in the Solomon Islands, known for its active volcano, hot springs, and historical significance in World War II naval battles.
-
E.
Tanaga Island
Tanaga Island is a remote volcanic island in Alaska’s Aleutian chain, known for its rugged terrain and active stratovolcanoes.
- 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: Sulfur Island Target entity description: Sulfur Island is the English translation of the Japanese name for Iwo Jima, a small volcanic island in the Pacific Ocean known for a major World War II battle.
-
A.
Omelek Island
Omelek Island is a small atoll in the Marshall Islands that served as SpaceX’s early orbital launch site for its Falcon 1 rocket.
-
B.
Chamisso Island
Chamisso Island is a small island in the Chukchi Sea off the coast of Alaska, known for its rich Arctic wildlife and designation as part of the Chukchi Sea unit of the Alaska Maritime National Wildlife Refuge.
-
C.
Santay Island
Santay Island is a protected ecological reserve and Ramsar wetland in the Guayas River near Guayaquil, Ecuador, known for its mangroves, birdlife, and small fishing communities.
-
D.
Savo Island
Savo Island is a small volcanic island in the Solomon Islands, known for its active volcano, hot springs, and historical significance in World War II naval battles.
-
E.
Tanaga Island
Tanaga Island is a remote volcanic island in Alaska’s Aleutian chain, known for its rugged terrain and active stratovolcanoes.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
World War II battle site
ⓘ
geographical feature ⓘ island ⓘ volcanic island ⓘ |
| approximateAreaSquareKilometers | 21 ⓘ |
| battleEndDate | 1945-03-26 ⓘ |
| battleStartDate | 1945-02-19 ⓘ |
| controlledBy | Japan ⓘ |
| country | Japan ⓘ |
| currentUse |
Japanese Self-Defense Forces base
ⓘ
military airfield ⓘ |
| distanceFromTokyoKilometers | about 1200 ⓘ |
| EnglishNameOf |
Iwo Jima
ⓘ
Iō-tō ⓘ |
| hasClimate | subtropical ⓘ |
| hasFamousPhotograph | Raising the Flag on Iwo Jima ⓘ |
| hasGeologicalActivity |
active volcanism
ⓘ
frequent seismic activity ⓘ |
| hasGeologicalFeature |
black sand beaches
ⓘ
fumaroles ⓘ sulfur deposits ⓘ |
| hasHighestPoint | Mount Suribachi ⓘ |
| hasJapaneseName |
硫黄島
ⓘ
linked to:
Sulfur Island
|
| hasJapaneseReading | Iō-tō ⓘ |
| hasMemorial | war memorials for Battle of Iwo Jima ⓘ |
| hasRestrictedAccess | true ⓘ |
| hasRunway | Iwo Jima Air Base ⓘ |
| hasSurroundingWaters | rich marine ecosystem ⓘ |
| hasVolcanicOrigin | true ⓘ |
| highestElevationMeters | 169 ⓘ |
| isInhabited | no permanent civilian population ⓘ |
| isStratovolcano | true ⓘ |
| isSymbolOf |
Japanese wartime sacrifice
ⓘ
US Marine Corps heritage ⓘ |
| locatedIn |
Ogasawara Archipelago
ⓘ
linked to:
Ogasawara Islands
Pacific Ocean ⓘ Philippine Sea ⓘ Volcano Islands ⓘ |
| nameMeaning | Sulfur Island NERFINISHED ⓘ |
| partOf |
Ogasawara Subprefecture
ⓘ
Tokyo Metropolis ⓘ
linked to:
Tokyo Prefecture
|
| returnedTo | Japanese sovereignty in 1968 ⓘ |
| strategicUse | airbase location in World War II ⓘ |
| wasAdministeredBy |
United States (1945–1968)
ⓘ
linked to:
United States of America
|
| wasSiteOf |
Battle of Iwo Jima
ⓘ
major World War II battle ⓘ |
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: Sulfur Island Description of subject: Sulfur Island is the English translation of the Japanese name for Iwo Jima, a small volcanic island in the Pacific Ocean known for a major World War II battle.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sulfur Island
linked to: Sulfur Island
linked to: Sulfur Island
linked to: Sulfur Island