Manila Trench
E50103
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Manila Trench canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T356056 — 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: Manila Trench Context triple: [Philippine Sea, hasOceanTrench, Manila 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.
-
B.
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.
-
C.
Puerto Rico Trench
The Puerto Rico Trench is a deep oceanic trench in the western Atlantic, marking the boundary between the Caribbean and North American tectonic plates and containing the region’s greatest ocean depths.
-
D.
Aleutian Trench
The Aleutian Trench is a deep oceanic trench in the North Pacific where the Pacific Plate subducts beneath the North American Plate, forming part of a major seismically active subduction zone.
-
E.
Hellenic Trench
The Hellenic Trench is a deep submarine trench in the eastern Mediterranean, formed by the subduction of the African Plate beneath the Aegean microplate and known for hosting some of the region’s greatest ocean depths and seismic activity.
- 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: Manila Trench Target entity description: 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.
-
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.
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.
-
C.
Puerto Rico Trench
The Puerto Rico Trench is a deep oceanic trench in the western Atlantic, marking the boundary between the Caribbean and North American tectonic plates and containing the region’s greatest ocean depths.
-
D.
Aleutian Trench
The Aleutian Trench is a deep oceanic trench in the North Pacific where the Pacific Plate subducts beneath the North American Plate, forming part of a major seismically active subduction zone.
-
E.
Hellenic Trench
The Hellenic Trench is a deep submarine trench in the eastern Mediterranean, formed by the subduction of the African Plate beneath the Aegean microplate and known for hosting some of the region’s greatest ocean depths and seismic activity.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
oceanic trench
ⓘ
subduction zone ⓘ |
| adjacentTo |
Luzon
ⓘ
surface form:
Luzon Island
Philippine Archipelago ⓘ
surface form:
Philippine archipelago
|
| approximateLength | about 1000 km ⓘ |
| associatedWith |
earthquake activity
ⓘ
tsunami hazard ⓘ volcanism in Luzon ⓘ |
| country | Philippines ⓘ |
| depthCategory | hadal zone boundary ⓘ |
| formedBy | convergence of Eurasian Plate and Philippine Sea Plate ⓘ |
| formedBySubductionOf | Eurasian Plate ⓘ |
| geohazardFor |
Metro Manila
ⓘ
surface form:
Metro Manila region
western Luzon coast ⓘ |
| geologicalAge | Cenozoic ⓘ |
| geologicalProcess | oceanic-continental subduction ⓘ |
| hazardType | subduction-zone megathrust ⓘ |
| locatedIn |
Philippine Sea
ⓘ
surface form:
Philippine Sea region
western Pacific Ocean ⓘ |
| locatedOffCoastOf |
Luzon
ⓘ
Philippines ⓘ |
| marginType | active continental margin ⓘ |
| maximumDepth |
about 5.4 km
ⓘ
about 5400 m ⓘ |
| namedAfter | Manila ⓘ |
| near |
Luzon Strait
ⓘ
Manila ⓘ South China Sea ⓘ |
| ocean | Pacific Ocean ⓘ |
| orientation | north-south trending ⓘ |
| overridingPlate | Philippine Sea Plate ⓘ |
| partOf |
Philippine Trench
ⓘ
surface form:
Philippine Trench system
|
| plateBoundaryBetween |
Eurasian Plate
ⓘ
Philippine Sea Plate ⓘ |
| region |
South China Sea
ⓘ
surface form:
South China Sea margin
|
| seafloorFeatureType | deep-sea trench ⓘ |
| tectonicProvince | Philippine Mobile Belt ⓘ |
| tectonicSetting | convergent plate boundary ⓘ |
| underlyingPlate | Eurasian Plate ⓘ |
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: Manila Trench Description of subject: 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.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.