Johnson South Reef
E285945
Johnson South Reef is a disputed coral reef in the South China Sea, claimed by multiple countries and strategically significant within the Spratly Islands archipelago.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Johnson Reef | 1 |
| Johnson South Reef canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2583052 — 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: Johnson South Reef Context triple: [Spratly Islands, contains, Johnson South Reef]
-
A.
Marion Reef
Marion Reef is a large coral reef formation in the Coral Sea off the coast of northeastern Australia, known for its rich marine biodiversity and remote location.
-
B.
Robbins Reef
Robbins Reef is a small rocky shoal in Upper New York Bay best known as the site of the historic Robbins Reef Lighthouse, which has long guided ships entering New York Harbor.
-
C.
Ashmore Reef
Ashmore Reef is a remote Australian marine reserve in the Timor Sea, known for its rich coral ecosystems, diverse marine life, and importance as a seabird and turtle nesting area.
-
D.
Runamukka Reef
Runamukka Reef is a family-friendly water play area at Universal’s Volcano Bay themed as a whimsical tropical reef with interactive water features and slides for children.
-
E.
Subi Reef
Subi Reef is a low-tide coral reef in the disputed Spratly Islands of the South China Sea, known for extensive land reclamation and military infrastructure built by China.
- 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: Johnson South Reef Target entity description: Johnson South Reef is a disputed coral reef in the South China Sea, claimed by multiple countries and strategically significant within the Spratly Islands archipelago.
-
A.
Marion Reef
Marion Reef is a large coral reef formation in the Coral Sea off the coast of northeastern Australia, known for its rich marine biodiversity and remote location.
-
B.
Robbins Reef
Robbins Reef is a small rocky shoal in Upper New York Bay best known as the site of the historic Robbins Reef Lighthouse, which has long guided ships entering New York Harbor.
-
C.
Ashmore Reef
Ashmore Reef is a remote Australian marine reserve in the Timor Sea, known for its rich coral ecosystems, diverse marine life, and importance as a seabird and turtle nesting area.
-
D.
Runamukka Reef
Runamukka Reef is a family-friendly water play area at Universal’s Volcano Bay themed as a whimsical tropical reef with interactive water features and slides for children.
-
E.
Subi Reef
Subi Reef is a low-tide coral reef in the disputed Spratly Islands of the South China Sea, known for extensive land reclamation and military infrastructure built by China.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
coral reef
ⓘ
disputed territory ⓘ reef in the South China Sea ⓘ |
| alsoKnownAs |
Chigua Jiao
ⓘ
Chigua Reef ⓘ Gạc Ma Reef ⓘ Panganiban Reef ⓘ
surface form:
Mabini Reef
Đá Gạc Ma ⓘ |
| archipelago | Spratly Islands ⓘ |
| associatedWith |
Philippines v. China (PCA case)
ⓘ
surface form:
South China Sea arbitration (Philippines v. China)
|
| claimedBy |
Philippines
ⓘ
surface form:
Republic of the Philippines
Viet Nam ⓘ
surface form:
Socialist Republic of Vietnam
|
| composition | coral formations ⓘ |
| conflict | Johnson South Reef Skirmish ⓘ |
| conflictDate | 1988-03-14 ⓘ |
| conflictPartOf | Sino-Vietnamese conflicts in the South China Sea ⓘ |
| controlledBy | China ⓘ |
| countryClaimBasis |
China bases claim on nine-dash line
ⓘ
Philippine exclusive economic zone ⓘ
surface form:
Philippines bases claim on proximity and EEZ under UNCLOS
Vietnam bases claim on historical administration of Spratly Islands ⓘ |
| disputeType |
maritime jurisdiction dispute
ⓘ
territorial dispute ⓘ |
| environmentType | tropical marine ecosystem ⓘ |
| event | site of 1988 naval clash between China and Vietnam ⓘ |
| featureType | low-tide elevation and reef ⓘ |
| geopoliticalSignificance | symbol of broader South China Sea disputes ⓘ |
| governedDeFactoBy |
China
ⓘ
surface form:
People's Republic of China
|
| hazard | navigational hazard to shipping ⓘ |
| infrastructure |
Chinese-built structures
ⓘ
land reclamation works ⓘ |
| legalContext | United Nations Convention on the Law of the Sea ⓘ |
| locatedIn | South China Sea ⓘ |
| militaryPresence | Chinese military outpost ⓘ |
| nearbyFeatures |
Cuarteron Reef
ⓘ
Subi Reef ⓘ
surface form:
Fiery Cross Reef
Hughes Reef ⓘ Panganiban Reef ⓘ
surface form:
Mabini Reef features within Spratly group
|
| partOf | Spratly Islands ⓘ |
| region |
western Pacific Ocean
ⓘ
surface form:
Western Pacific Ocean
|
| sovereigntyClaimedBy |
China
ⓘ
Philippines ⓘ Viet Nam ⓘ
surface form:
Vietnam
|
| status |
heavily contested feature in Spratly Islands
ⓘ
militarized outpost ⓘ |
| strategicImportance |
located near key shipping lanes in the South China Sea
ⓘ
part of overlapping maritime and EEZ claims ⓘ |
| usedFor |
assertion of maritime claims
ⓘ
military surveillance ⓘ |
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: Johnson South Reef Description of subject: Johnson South Reef is a disputed coral reef in the South China Sea, claimed by multiple countries and strategically significant within the Spratly Islands archipelago.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Johnson Reef