Triple

T9138231
Position Surface form Disambiguated ID Type / Status
Subject 1985 Mexico City earthquake E219257 entity
Predicate locatedOn P40 FINISHED
Object Middle America Trench subduction interface
The Middle America Trench subduction interface is a major convergent plate boundary off the Pacific coast of Central America and Mexico where the Cocos Plate is forced beneath the North American and Caribbean Plates, generating powerful megathrust earthquakes.
E780320 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Middle America Trench subduction interface | Statement: [1985 Mexico City earthquake, locatedOn, Middle America Trench subduction interface]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Middle America Trench subduction interface
Context triple: [1985 Mexico City earthquake, locatedOn, Middle America Trench subduction interface]
  • A. Tonga-Kermadec subduction system
    The Tonga-Kermadec subduction system is a major convergent plate boundary in the southwest Pacific where the Pacific Plate descends beneath the Indo-Australian Plate, producing one of the world’s deepest ocean trenches and most active seismic and volcanic regions.
  • B. East Pacific tectonic system
    The East Pacific tectonic system is a major geological region in the eastern Pacific Ocean characterized by active seafloor spreading, transform faults, and subduction zones that shape the surrounding oceanic plates and continental margins.
  • C. Sunda subduction system
    The Sunda subduction system is a major convergent plate boundary in Southeast Asia where the Indo-Australian Plate is being subducted beneath the Eurasian/Sunda Plate, generating intense seismic and volcanic activity along Indonesia’s island arcs.
  • D. Aleutian subduction system
    The Aleutian subduction system is a major tectonic plate boundary where the Pacific Plate is forced beneath the North American Plate, forming the Aleutian Trench and associated volcanic island arc in the North Pacific.
  • E. Pacific–North American plate boundary system
    The Pacific–North American plate boundary system is a major tectonic boundary zone where the Pacific Plate and North American Plate interact through a complex network of faults and plate motions along western North America.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Middle America Trench subduction interface
Triple: [1985 Mexico City earthquake, locatedOn, Middle America Trench subduction interface]
Generated description
The Middle America Trench subduction interface is a major convergent plate boundary off the Pacific coast of Central America and Mexico where the Cocos Plate is forced beneath the North American and Caribbean Plates, generating powerful megathrust earthquakes.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Middle America Trench subduction interface
Target entity description: The Middle America Trench subduction interface is a major convergent plate boundary off the Pacific coast of Central America and Mexico where the Cocos Plate is forced beneath the North American and Caribbean Plates, generating powerful megathrust earthquakes.
  • A. Tonga-Kermadec subduction system
    The Tonga-Kermadec subduction system is a major convergent plate boundary in the southwest Pacific where the Pacific Plate descends beneath the Indo-Australian Plate, producing one of the world’s deepest ocean trenches and most active seismic and volcanic regions.
  • B. East Pacific tectonic system
    The East Pacific tectonic system is a major geological region in the eastern Pacific Ocean characterized by active seafloor spreading, transform faults, and subduction zones that shape the surrounding oceanic plates and continental margins.
  • C. Sunda subduction system
    The Sunda subduction system is a major convergent plate boundary in Southeast Asia where the Indo-Australian Plate is being subducted beneath the Eurasian/Sunda Plate, generating intense seismic and volcanic activity along Indonesia’s island arcs.
  • D. Aleutian subduction system
    The Aleutian subduction system is a major tectonic plate boundary where the Pacific Plate is forced beneath the North American Plate, forming the Aleutian Trench and associated volcanic island arc in the North Pacific.
  • E. Pacific–North American plate boundary system
    The Pacific–North American plate boundary system is a major tectonic boundary zone where the Pacific Plate and North American Plate interact through a complex network of faults and plate motions along western North America.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69ca83e012288190a5771058adbaabd2 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69cca8efe3b88190a55a15827e6817a4 completed April 1, 2026, 5:11 a.m.
NED1 Entity disambiguation (via context triple) batch_69d0480458348190b0b87f7a66d85b87 completed April 3, 2026, 11:06 p.m.
NEDg Description generation batch_69d049058dec81909854965276252808 completed April 3, 2026, 11:11 p.m.
NED2 Entity disambiguation (via description) batch_69d049913b7481909ccbaf4999e37c06 completed April 3, 2026, 11:13 p.m.
Created at: March 30, 2026, 7:19 p.m.