Cotabato Trench
E254964
Cotabato Trench is a deep oceanic trench in the southern Philippines formed by tectonic subduction and known for its significant seismic and geologic activity.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cotabato Trench canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2120666 — 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: Cotabato Trench Context triple: [Philippine Mobile Belt, associatedWith, Cotabato Trench]
-
A.
Negros Trench
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- 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: Cotabato Trench Target entity description: Cotabato Trench is a deep oceanic trench in the southern Philippines formed by tectonic subduction and known for its significant seismic and geologic activity.
-
A.
Negros Trench
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.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
oceanic trench
ⓘ
subduction zone ⓘ |
| associatedWith |
earthquakes
ⓘ
tsunamis ⓘ volcanism ⓘ |
| belongsTo | Philippine archipelago tectonic system ⓘ |
| country | Philippines ⓘ |
| depth | over 5000 m ⓘ |
| discoveredBy | marine geophysical surveys ⓘ |
| featureType | bathymetric depression ⓘ |
| formedBy | tectonic subduction ⓘ |
| geologicActivity | significant ⓘ |
| geologicalAge | Cenozoic ⓘ |
| geologicalProcess | oceanic-continental subduction ⓘ |
| hazardType |
seismic hazard
ⓘ
tsunami hazard ⓘ |
| importance | major source of regional seismic hazard in southern Philippines ⓘ |
| linkedTo | intraplate and interplate earthquakes in Mindanao ⓘ |
| locatedIn |
Philippine Sea
ⓘ
southern Philippines ⓘ |
| monitoring | seismological networks of the Philippines ⓘ |
| near |
Celebes Sea
ⓘ
Mindanao ⓘ Sulu Sea ⓘ |
| ocean | Pacific Ocean marginal basin ⓘ |
| orientation | roughly northeast–southwest ⓘ |
| parallelTo |
Philippine Trench
ⓘ
Sulu Trench ⓘ |
| partOf |
Philippine Mobile Belt
ⓘ
Philippine subduction system ⓘ |
| region |
Mindanao
ⓘ
surface form:
Mindanao region
|
| riskTo | southern Mindanao coastal communities ⓘ |
| seismicActivity | high ⓘ |
| studiedFor |
plate tectonics
ⓘ
seismotectonics ⓘ tsunami generation ⓘ |
| subductionDirection | westward or northwestward subduction of oceanic plate ⓘ |
| tectonicPlate |
Philippine Sea Plate
ⓘ
Sunda Plate ⓘ |
| tectonicPlateInteraction |
Philippine Sea Plate
ⓘ
surface form:
Philippine Sea Plate subducting beneath Sunda 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: Cotabato Trench Description of subject: Cotabato Trench is a deep oceanic trench in the southern Philippines formed by tectonic subduction and known for its significant seismic and geologic activity.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.