Triple
T9106344
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ghawar oil field |
E218486
|
entity |
| Predicate | reservoirFormation |
P86512
|
FINISHED |
| Object |
Arab-D carbonate formation
The Arab-D carbonate formation is a highly productive Late Jurassic limestone and dolomite reservoir rock that hosts much of the oil in Saudi Arabia’s giant Ghawar field and other major Middle Eastern petroleum accumulations.
|
E777207
|
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: Arab-D carbonate formation | Statement: [Ghawar oil field, reservoirFormation, Arab-D carbonate formation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Arab-D carbonate formation Context triple: [Ghawar oil field, reservoirFormation, Arab-D carbonate formation]
-
A.
Magnesian Limestone succession
The Magnesian Limestone succession is a geological sequence of Permian-age dolomitic limestone formations that forms a distinctive belt across parts of northern and central England.
-
B.
Lomagundi–Jatuli carbon isotope excursion
The Lomagundi–Jatuli carbon isotope excursion was a major global perturbation in the carbon cycle during the Paleoproterozoic, marked by unusually high carbon isotope ratios that suggest prolonged burial of organic carbon and significant changes in Earth’s atmosphere and oceans.
-
C.
Kellwasser horizons
The Kellwasser horizons are distinctive black shale layers in Late Devonian marine sediments that mark one of the major extinction pulses during the Late Devonian mass extinction.
-
D.
Bowen’s reaction series
Bowen’s reaction series is a conceptual model in geology that explains the sequence and conditions under which minerals crystallize from cooling magma.
-
E.
Elements of Petroleum Geology
Elements of Petroleum Geology is a widely used textbook that provides a comprehensive introduction to the geological principles and methods involved in the exploration and production of petroleum.
- 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: Arab-D carbonate formation Triple: [Ghawar oil field, reservoirFormation, Arab-D carbonate formation]
Generated description
The Arab-D carbonate formation is a highly productive Late Jurassic limestone and dolomite reservoir rock that hosts much of the oil in Saudi Arabia’s giant Ghawar field and other major Middle Eastern petroleum accumulations.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Arab-D carbonate formation Target entity description: The Arab-D carbonate formation is a highly productive Late Jurassic limestone and dolomite reservoir rock that hosts much of the oil in Saudi Arabia’s giant Ghawar field and other major Middle Eastern petroleum accumulations.
-
A.
Magnesian Limestone succession
The Magnesian Limestone succession is a geological sequence of Permian-age dolomitic limestone formations that forms a distinctive belt across parts of northern and central England.
-
B.
Lomagundi–Jatuli carbon isotope excursion
The Lomagundi–Jatuli carbon isotope excursion was a major global perturbation in the carbon cycle during the Paleoproterozoic, marked by unusually high carbon isotope ratios that suggest prolonged burial of organic carbon and significant changes in Earth’s atmosphere and oceans.
-
C.
Kellwasser horizons
The Kellwasser horizons are distinctive black shale layers in Late Devonian marine sediments that mark one of the major extinction pulses during the Late Devonian mass extinction.
-
D.
Bowen’s reaction series
Bowen’s reaction series is a conceptual model in geology that explains the sequence and conditions under which minerals crystallize from cooling magma.
-
E.
Elements of Petroleum Geology
Elements of Petroleum Geology is a widely used textbook that provides a comprehensive introduction to the geological principles and methods involved in the exploration and production of petroleum.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: reservoirFormation Context triple: [Ghawar oil field, reservoirFormation, Arab-D carbonate formation]
-
A.
reservoir
Indicates that one entity serves as a storage or containment source (often for a resource) that can supply or affect another entity.
-
B.
reservoirType
Indicates the specific kind or classification of a reservoir associated with an entity.
-
C.
reservoirAlsoKnownAs
Indicates that a reservoir is referred to by an alternative name or alias.
-
D.
reservoirCreated
Indicates that a reservoir has been brought into existence, typically through construction or formation by some agent or process.
-
E.
includesReservoir
Indicates that one entity contains or encompasses a reservoir as part of its structure, system, or area.
- F. None of above. chosen
Provenance (7 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_69ca83db7448819090d0a5de842ef2ac |
completed | March 30, 2026, 2:08 p.m. |
| NER | Named-entity recognition | batch_69cca57286a88190b256d2461c5c0aed |
completed | April 1, 2026, 4:56 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d01840d2488190a14d458aa181cc47 |
completed | April 3, 2026, 7:42 p.m. |
| NEDg | Description generation | batch_69d0196766248190aebda80cbd7d1eef |
completed | April 3, 2026, 7:47 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69d019d76d2481909118b163ce5713f2 |
completed | April 3, 2026, 7:49 p.m. |
| PD | Predicate disambiguation | batch_69cc65fe5be081909d4470d6317b14a6 |
completed | April 1, 2026, 12:25 a.m. |
| PDg | Predicate description generation | batch_69cc66d7bf648190b8bff5b584b84975 |
completed | April 1, 2026, 12:29 a.m. |
Created at: March 30, 2026, 7:16 p.m.