Triple

T581481
Position Surface form Disambiguated ID Type / Status
Subject Juan de Fuca Ridge E15067 entity
Predicate terminatesNear P388 FINISHED
Object Mendocino Fracture Zone
The Mendocino Fracture Zone is a major east–west-trending transform fault and fracture zone in the northeast Pacific Ocean that marks a significant boundary in the oceanic crust off the coast of northern California.
E73345 NE FINISHED

How this triple was built (5 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: Mendocino Fracture Zone | Statement: [Juan de Fuca Ridge, terminatesNear, Mendocino Fracture Zone]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mendocino Fracture Zone
Context triple: [Juan de Fuca Ridge, terminatesNear, Mendocino Fracture Zone]
  • A. Romanche Fracture Zone
    The Romanche Fracture Zone is a major transform fault and deep-sea fracture zone in the equatorial Atlantic Ocean that offsets the Mid-Atlantic Ridge and hosts one of the deepest points in the Atlantic basin.
  • B. Sovanco Fracture Zone
    The Sovanco Fracture Zone is a major transform fault system in the northeast Pacific Ocean that accommodates motion between the Explorer and Juan de Fuca tectonic plates.
  • C. Charlie-Gibbs Fracture Zone
    The Charlie-Gibbs Fracture Zone is a major deep-sea transform fault system in the North Atlantic Ocean that offsets and disrupts the continuity of the Mid-Atlantic Ridge.
  • D. Gulf of California rift zone
    The Gulf of California rift zone is an active tectonic region where continental crust is being stretched and thinned, linking the San Andreas Fault system to seafloor spreading centers in the eastern Pacific.
  • E. Juan de Fuca Ridge
    Juan de Fuca Ridge is an underwater volcanic spreading center in the northeastern Pacific Ocean where new oceanic crust forms as tectonic plates diverge.
  • 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: Mendocino Fracture Zone
Triple: [Juan de Fuca Ridge, terminatesNear, Mendocino Fracture Zone]
Generated description
The Mendocino Fracture Zone is a major east–west-trending transform fault and fracture zone in the northeast Pacific Ocean that marks a significant boundary in the oceanic crust off the coast of northern California.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mendocino Fracture Zone
Target entity description: The Mendocino Fracture Zone is a major east–west-trending transform fault and fracture zone in the northeast Pacific Ocean that marks a significant boundary in the oceanic crust off the coast of northern California.
  • A. Romanche Fracture Zone
    The Romanche Fracture Zone is a major transform fault and deep-sea fracture zone in the equatorial Atlantic Ocean that offsets the Mid-Atlantic Ridge and hosts one of the deepest points in the Atlantic basin.
  • B. Sovanco Fracture Zone
    The Sovanco Fracture Zone is a major transform fault system in the northeast Pacific Ocean that accommodates motion between the Explorer and Juan de Fuca tectonic plates.
  • C. Charlie-Gibbs Fracture Zone
    The Charlie-Gibbs Fracture Zone is a major deep-sea transform fault system in the North Atlantic Ocean that offsets and disrupts the continuity of the Mid-Atlantic Ridge.
  • D. Gulf of California rift zone
    The Gulf of California rift zone is an active tectonic region where continental crust is being stretched and thinned, linking the San Andreas Fault system to seafloor spreading centers in the eastern Pacific.
  • E. Juan de Fuca Ridge
    Juan de Fuca Ridge is an underwater volcanic spreading center in the northeastern Pacific Ocean where new oceanic crust forms as tectonic plates diverge.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: terminatesNear
Context triple: [Juan de Fuca Ridge, terminatesNear, Mendocino Fracture Zone]
  • A. occursNear
    Indicates that one event or entity takes place or exists in close spatial proximity to another.
  • B. terminus chosen
    Indicates that one entity serves as the final endpoint or stopping place for another entity’s movement, route, or process.
  • C. distanceFromTerminus
    Indicates the measured distance of an entity from a defined endpoint or terminus along a route, path, or sequence.
  • D. near
    Indicates that one entity is located at a short distance from another entity in space or position.
  • E. terminusEast
    Indicates that one entity serves as the eastern endpoint or final stop of another entity, such as a route, line, or path.
  • F. None of above.

Provenance (6 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_69a4935783b8819082b77726ec10cc42 completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a49b84899881909d5b2b4e67e22d9b completed March 1, 2026, 8:03 p.m.
NED1 Entity disambiguation (via context triple) batch_69a50e23bce481908404040b848ba9c1 completed March 2, 2026, 4:12 a.m.
NEDg Description generation batch_69a50ed652148190a84c0d2aa5307211 completed March 2, 2026, 4:15 a.m.
NED2 Entity disambiguation (via description) batch_69a50f53c16c8190bbeb7fa550ed46b1 completed March 2, 2026, 4:17 a.m.
PD Predicate disambiguation batch_69a494c7f9008190bd8d05b4dc2a7c7f completed March 1, 2026, 7:34 p.m.
Created at: March 1, 2026, 7:33 p.m.