Triple
T7010614
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nansen-Gakkel Ridge |
E162569
|
entity |
| Predicate | segmentOf |
P17710
|
FINISHED |
| Object |
Eurasian spreading center
The Eurasian spreading center is a tectonic plate boundary in the Arctic Ocean where the Eurasian and North American plates diverge, creating new oceanic crust along mid-ocean ridges such as the Nansen-Gakkel Ridge.
|
E634822
|
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: Eurasian spreading center | Statement: [Nansen-Gakkel Ridge, segmentOf, Eurasian spreading center]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Eurasian spreading center Context triple: [Nansen-Gakkel Ridge, segmentOf, Eurasian spreading center]
-
A.
Galápagos Spreading Center
The Galápagos Spreading Center is a mid-ocean ridge segment in the eastern Pacific where tectonic plates diverge and new oceanic crust forms near the Galápagos Islands.
-
B.
Gulf of Aden spreading center
The Gulf of Aden spreading center is a tectonic plate boundary in the northwestern Indian Ocean where seafloor spreading occurs, linking the Red Sea rift to the Carlsberg Ridge and contributing to the opening of the Gulf of Aden.
-
C.
Alpha–Mendeleev Ridge complex
The Alpha–Mendeleev Ridge complex is a large submarine volcanic ridge system in the Arctic Ocean, forming part of the ocean floor topography between the Eurasian and Amerasian basins.
-
D.
Cocos–Nazca spreading center
The Cocos–Nazca spreading center is a mid-ocean ridge in the eastern Pacific where tectonic divergence forms and separates the Cocos and Nazca plates.
-
E.
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.
- 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: Eurasian spreading center Triple: [Nansen-Gakkel Ridge, segmentOf, Eurasian spreading center]
Generated description
The Eurasian spreading center is a tectonic plate boundary in the Arctic Ocean where the Eurasian and North American plates diverge, creating new oceanic crust along mid-ocean ridges such as the Nansen-Gakkel Ridge.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Eurasian spreading center Target entity description: The Eurasian spreading center is a tectonic plate boundary in the Arctic Ocean where the Eurasian and North American plates diverge, creating new oceanic crust along mid-ocean ridges such as the Nansen-Gakkel Ridge.
-
A.
Galápagos Spreading Center
The Galápagos Spreading Center is a mid-ocean ridge segment in the eastern Pacific where tectonic plates diverge and new oceanic crust forms near the Galápagos Islands.
-
B.
Gulf of Aden spreading center
The Gulf of Aden spreading center is a tectonic plate boundary in the northwestern Indian Ocean where seafloor spreading occurs, linking the Red Sea rift to the Carlsberg Ridge and contributing to the opening of the Gulf of Aden.
-
C.
Alpha–Mendeleev Ridge complex
The Alpha–Mendeleev Ridge complex is a large submarine volcanic ridge system in the Arctic Ocean, forming part of the ocean floor topography between the Eurasian and Amerasian basins.
-
D.
Cocos–Nazca spreading center
The Cocos–Nazca spreading center is a mid-ocean ridge in the eastern Pacific where tectonic divergence forms and separates the Cocos and Nazca plates.
-
E.
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.
- 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_69c6885928148190ae31909fbb5e9849 |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6dc3917c481909a288c3e56630c48 |
completed | March 27, 2026, 7:36 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c76a4bd424819097e1543ec59979ff |
completed | March 28, 2026, 5:42 a.m. |
| NEDg | Description generation | batch_69c76b1ef6f481908f4c4f610328f633 |
completed | March 28, 2026, 5:46 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c76c01679c8190b61f642c23c25ed5 |
completed | March 28, 2026, 5:49 a.m. |
Created at: March 27, 2026, 2:34 p.m.