Bonin Trench
E942625
The Bonin Trench is a deep-ocean trench in the western Pacific Ocean, located south of Japan near the Bonin (Ogasawara) Islands and forming part of the subduction zone where the Pacific Plate descends beneath the Philippine Sea Plate.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bonin Trench canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11715414 — 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: Bonin Trench Context triple: [Izu–Bonin–Mariana Trench system, hasPart, Bonin Trench]
-
A.
Romanche Trench
The Romanche Trench is a deep submarine trench in the equatorial Atlantic Ocean formed by the Romanche Fracture Zone, marking one of the major offsets of the Mid-Atlantic Ridge.
-
B.
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.
-
C.
Mariana Trough
The Mariana Trough is a back-arc basin in the western Pacific Ocean formed by seafloor spreading behind the Mariana subduction zone.
-
D.
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.
-
E.
Kermadec Trench
The Kermadec Trench is a deep oceanic trench in the South Pacific Ocean, part of the highly active Kermadec-Tonga subduction zone and among the deepest regions on Earth.
- 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: Bonin Trench Target entity description: The Bonin Trench is a deep-ocean trench in the western Pacific Ocean, located south of Japan near the Bonin (Ogasawara) Islands and forming part of the subduction zone where the Pacific Plate descends beneath the Philippine Sea Plate.
-
A.
Romanche Trench
The Romanche Trench is a deep submarine trench in the equatorial Atlantic Ocean formed by the Romanche Fracture Zone, marking one of the major offsets of the Mid-Atlantic Ridge.
-
B.
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.
-
C.
Mariana Trough
The Mariana Trough is a back-arc basin in the western Pacific Ocean formed by seafloor spreading behind the Mariana subduction zone.
-
D.
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.
-
E.
Kermadec Trench
The Kermadec Trench is a deep oceanic trench in the South Pacific Ocean, part of the highly active Kermadec-Tonga subduction zone and among the deepest regions on Earth.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
oceanic trench
ⓘ
subduction zone feature ⓘ |
| adjacentTo |
Pacific Plate
NERFINISHED
ⓘ
Philippine Sea Plate NERFINISHED ⓘ |
| alsoKnownAs | Ogasawara Trench NERFINISHED ⓘ |
| associatedWith |
Izu–Bonin–Ogasawara Arc
NERFINISHED
ⓘ
deep-focus earthquakes ⓘ volcanic arc activity ⓘ |
| countryOffshoreFrom | Japan NERFINISHED ⓘ |
| depthCategory | hadal trench ⓘ |
| environment | hadal zone ⓘ |
| featureOf | Pacific Ocean floor ⓘ |
| formedBy | subduction of the Pacific Plate beneath the Philippine Sea Plate ⓘ |
| geologicalAge | Cenozoic ⓘ |
| geologicalHazard |
earthquakes
ⓘ
potential tsunami generation ⓘ |
| geologicalProcess | oceanic plate subduction ⓘ |
| governedBy | United Nations Convention on the Law of the Sea (UNCLOS) for deep seabed NERFINISHED ⓘ |
| hasCharacteristic |
low temperature deep waters
ⓘ
steep trench walls ⓘ very high hydrostatic pressure at the seafloor ⓘ |
| liesSouthOf | Izu–Bonin volcanic arc NERFINISHED ⓘ |
| locatedIn | western Pacific Ocean NERFINISHED ⓘ |
| locatedNear |
Bonin Islands
NERFINISHED
ⓘ
Ogasawara Islands NERFINISHED ⓘ |
| locatedSouthOf | Japan NERFINISHED ⓘ |
| maximumDepth |
over 29000 feet
ⓘ
over 9000 metres ⓘ |
| namedAfter | Bonin Islands NERFINISHED ⓘ |
| ocean | Pacific Ocean ⓘ |
| partOf |
Izu–Bonin–Mariana subduction system
NERFINISHED
ⓘ
Pacific Ring of Fire ⓘ western Pacific trench system ⓘ |
| region | northwestern Pacific Ocean NERFINISHED ⓘ |
| relatedTo |
Izu Trench
NERFINISHED
ⓘ
Mariana Trench NERFINISHED ⓘ |
| relativeDepthRank | among the deepest ocean trenches on Earth ⓘ |
| researchInterest |
deep-sea biology
ⓘ
plate tectonics ⓘ seismology ⓘ |
| separates | Pacific Plate from Philippine Sea Plate ⓘ |
| tectonicSetting | convergent plate boundary ⓘ |
| typeOf | deep-sea trench ⓘ |
| withinExclusiveEconomicZoneOf | Japan NERFINISHED ⓘ |
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: Bonin Trench Description of subject: The Bonin Trench is a deep-ocean trench in the western Pacific Ocean, located south of Japan near the Bonin (Ogasawara) Islands and forming part of the subduction zone where the Pacific Plate descends beneath the Philippine Sea Plate.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.