Johnston Island
E698234
Johnston Island is the main island of the remote Johnston Atoll in the North Pacific Ocean, historically used as a U.S. military base and site for weapons testing and storage.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Johnston Island canonical | 4 |
| Christmas Island | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6676909 — 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: Johnston Island Context triple: [Johnston Atoll, hasPart, Johnston Island]
-
A.
Henderson Island
Henderson Island is a remote, uninhabited coral island in the South Pacific Ocean, renowned for its near-pristine ecosystem and status as a UNESCO World Heritage Site.
-
B.
Palmerston Island
Palmerston Island is a remote coral atoll in the South Pacific Ocean, known for its small, closely related population and unique isolation within the Cook Islands.
-
C.
Gambier Island
Gambier Island is a forested, sparsely populated island in Howe Sound known for its rugged coastline, outdoor recreation, and proximity to Vancouver in southwestern British Columbia, Canada.
-
D.
Woodlark Island
Woodlark Island is a remote island in Papua New Guinea’s Milne Bay Province, notable for its role as a World War II military staging area and its rich tropical biodiversity.
-
E.
Pentecost Island
Pentecost Island is a volcanic island in Vanuatu renowned as the birthplace of the land diving ritual that inspired modern bungee jumping.
- 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: Johnston Island Target entity description: Johnston Island is the main island of the remote Johnston Atoll in the North Pacific Ocean, historically used as a U.S. military base and site for weapons testing and storage.
-
A.
Henderson Island
Henderson Island is a remote, uninhabited coral island in the South Pacific Ocean, renowned for its near-pristine ecosystem and status as a UNESCO World Heritage Site.
-
B.
Palmerston Island
Palmerston Island is a remote coral atoll in the South Pacific Ocean, known for its small, closely related population and unique isolation within the Cook Islands.
-
C.
Gambier Island
Gambier Island is a forested, sparsely populated island in Howe Sound known for its rugged coastline, outdoor recreation, and proximity to Vancouver in southwestern British Columbia, Canada.
-
D.
Woodlark Island
Woodlark Island is a remote island in Papua New Guinea’s Milne Bay Province, notable for its role as a World War II military staging area and its rich tropical biodiversity.
-
E.
Pentecost Island
Pentecost Island is a volcanic island in Vanuatu renowned as the birthplace of the land diving ritual that inspired modern bungee jumping.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | island ⓘ |
| accessStatus | restricted access ⓘ |
| administeredAs |
unincorporated territory of the United States
ⓘ
unorganized territory of the United States ⓘ |
| administeredBy | United States Department of the Interior ⓘ |
| area |
about 0.4 square miles
ⓘ
about 1.03 square kilometers ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| discoveredBy | Captain Charles J. Johnston ⓘ |
| discoveredFor | HMS Cornwallis ⓘ |
| discoveryYear | 1807 ⓘ |
| distanceFromHawaii | about 750 nautical miles southwest of Honolulu ⓘ |
| elevation | approximately 5 meters above sea level ⓘ |
| environmentalStatus |
contaminated by past military activities
ⓘ
subject to environmental cleanup ⓘ |
| formerPopulation |
civilian contractors
ⓘ
military personnel ⓘ |
| hasFacility |
airfield
ⓘ
chemical agent disposal facility ⓘ harbor ⓘ missile launch facilities ⓘ runway ⓘ |
| legalStatus | U.S. federal property ⓘ |
| locatedIn |
North Pacific Ocean
ⓘ
linked to:
Northern Pacific Ocean
central Pacific Ocean ⓘ
linked to:
Central Pacific Ocean
|
| managedBy | U.S. Fish and Wildlife Service ⓘ |
| namedAfter | Captain Charles J. Johnston ⓘ |
| nearbyFeature | southwest of Hawaii ⓘ |
| partOf |
Johnston Atoll
ⓘ
Johnston Atoll National Wildlife Refuge ⓘ United States Minor Outlying Islands ⓘ
linked to:
U.S. Pacific unorganized territories
|
| permanentPopulation | no permanent residents ⓘ |
| populationStatus | uninhabited ⓘ |
| publicAccess | generally closed to the public ⓘ |
| runwayLength |
approximately 2,100 meters
ⓘ
approximately 7,000 feet ⓘ |
| sovereignState |
United States
ⓘ
linked to:
United States of America
|
| timeZone | UTC−10:00 ⓘ |
| usedAs |
U.S. military base
ⓘ
airbase ⓘ chemical weapons destruction facility ⓘ chemical weapons storage site ⓘ missile test site ⓘ naval support facility ⓘ nuclear weapons test site ⓘ |
| usedBy |
Defense Threat Reduction Agency
ⓘ
U.S. Army Chemical Materials Agency ⓘ
linked to:
U.S. Army Chemical Materials Activity
United States Air Force ⓘ United States Navy ⓘ |
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: Johnston Island Description of subject: Johnston Island is the main island of the remote Johnston Atoll in the North Pacific Ocean, historically used as a U.S. military base and site for weapons testing and storage.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.