Negros Trench
E252021
The Negros Trench is a deep oceanic trench in the western Pacific, located off the central Philippines and formed by the subduction of the Sulu Sea Plate beneath the Philippine Mobile Belt.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Negros Trench canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2120665 — 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: Negros Trench Context triple: [Philippine Mobile Belt, associatedWith, Negros Trench]
-
A.
Philippine Trench
The Philippine Trench is a deep oceanic trench in the western Pacific, known as one of the deepest points on Earth’s seafloor and a major site of tectonic subduction.
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B.
Manila Trench
The Manila Trench is a deep oceanic trench in the western Pacific, off the coast of Luzon in the Philippines, formed by the subduction of the Eurasian Plate beneath the Philippine Sea Plate.
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C.
Palau Trench
The Palau Trench is a deep oceanic trench in the western Pacific Ocean near Palau, formed by the subduction of the Philippine Sea Plate.
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D.
Tonga Trench
The Tonga Trench is one of the deepest oceanic trenches on Earth, located in the southwestern Pacific and formed by the subduction of the Pacific Plate beneath the Indo-Australian Plate.
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E.
Ryukyu Trench
The Ryukyu Trench is a deep oceanic trench in the western Pacific, running along the Ryukyu Islands south of Japan where the Philippine Sea Plate subducts beneath the Eurasian Plate.
- 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: Negros Trench Target entity description: The Negros Trench is a deep oceanic trench in the western Pacific, located off the central Philippines and formed by the subduction of the Sulu Sea Plate beneath the Philippine Mobile Belt.
-
A.
Philippine Trench
The Philippine Trench is a deep oceanic trench in the western Pacific, known as one of the deepest points on Earth’s seafloor and a major site of tectonic subduction.
-
B.
Manila Trench
The Manila Trench is a deep oceanic trench in the western Pacific, off the coast of Luzon in the Philippines, formed by the subduction of the Eurasian Plate beneath the Philippine Sea Plate.
-
C.
Palau Trench
The Palau Trench is a deep oceanic trench in the western Pacific Ocean near Palau, formed by the subduction of the Philippine Sea Plate.
-
D.
Tonga Trench
The Tonga Trench is one of the deepest oceanic trenches on Earth, located in the southwestern Pacific and formed by the subduction of the Pacific Plate beneath the Indo-Australian Plate.
-
E.
Ryukyu Trench
The Ryukyu Trench is a deep oceanic trench in the western Pacific, running along the Ryukyu Islands south of Japan where the Philippine Sea Plate subducts beneath the Eurasian Plate.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
oceanic trench
ⓘ
subduction zone feature ⓘ |
| adjacentSea |
Philippine Sea
ⓘ
Sulu Sea ⓘ |
| associatedWith |
earthquake activity
ⓘ
tsunami hazard ⓘ volcanism in the central Philippines ⓘ |
| continent | Asia ⓘ |
| country | Philippines ⓘ |
| depthCategory | hadal to abyssal zone ⓘ |
| discoveredBy | marine geophysical surveys in the 20th century ⓘ |
| featureType | deep-sea trench ⓘ |
| formedBy | subduction of the Sulu Sea Plate beneath the Philippine Mobile Belt ⓘ |
| geologicalProcess | oceanic plate subduction ⓘ |
| hazardRelevance | source of potentially large subduction earthquakes ⓘ |
| locatedIn | western Pacific Ocean ⓘ |
| locatedOffCoastOf | central Philippines ⓘ |
| maximumDepth | over 5000 m ⓘ |
| nearIsland |
Cebu Island
ⓘ
Negros Island ⓘ Panay Island ⓘ |
| ocean | Pacific Ocean ⓘ |
| orientation | roughly north–south ⓘ |
| overridingPlate | Philippine Mobile Belt ⓘ |
| partOf |
Philippine Trench
ⓘ
surface form:
Philippine Trench system
|
| plateBoundaryBetween | Sulu Sea Plate and Philippine Mobile Belt ⓘ |
| region | Visayas ⓘ |
| runsParallelTo | central Visayas island arc ⓘ |
| subductingPlate | Sulu Sea Plate ⓘ |
| tectonicSetting | convergent plate boundary ⓘ |
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: Negros Trench Description of subject: The Negros Trench is a deep oceanic trench in the western Pacific, located off the central Philippines and formed by the subduction of the Sulu Sea Plate beneath the Philippine Mobile Belt.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.