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.