Triple
T537864
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Port Harcourt |
E12365
|
entity |
| Predicate | hasRefinery |
P16607
|
FINISHED |
| Object |
Port Harcourt Refining Company
Port Harcourt Refining Company is a major Nigerian state-owned oil refinery complex located in Port Harcourt, responsible for processing crude oil into petroleum products for domestic use and export.
|
E67110
|
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: Port Harcourt Refining Company | Statement: [Port Harcourt, hasRefinery, Port Harcourt Refining Company]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Port Harcourt Refining Company Context triple: [Port Harcourt, hasRefinery, Port Harcourt Refining Company]
-
A.
Mobil Oil Nigeria
Mobil Oil Nigeria is a major petroleum marketing and distribution company operating in Nigeria as part of the global ExxonMobil network.
-
B.
Niger Delta Development Commission
The Niger Delta Development Commission is a Nigerian federal agency tasked with promoting sustainable development, infrastructure, and environmental remediation in the oil-rich Niger Delta region.
-
C.
Petroleum Group
The Petroleum Group is a specialist division of the Geological Society of London focused on the study and professional exchange of knowledge related to petroleum geoscience and hydrocarbon exploration.
-
D.
Ganoub El Wadi Petroleum Holding Company
Ganoub El Wadi Petroleum Holding Company is an Egyptian state-owned oil and gas company responsible for exploration, production, and development activities primarily in the southern regions of Egypt.
-
E.
Egyptian General Petroleum Corporation
The Egyptian General Petroleum Corporation is Egypt’s state-owned oil and gas company responsible for managing the country’s hydrocarbon resources, exploration, production, and related downstream activities.
- 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: Port Harcourt Refining Company Triple: [Port Harcourt, hasRefinery, Port Harcourt Refining Company]
Generated description
Port Harcourt Refining Company is a major Nigerian state-owned oil refinery complex located in Port Harcourt, responsible for processing crude oil into petroleum products for domestic use and export.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Port Harcourt Refining Company Target entity description: Port Harcourt Refining Company is a major Nigerian state-owned oil refinery complex located in Port Harcourt, responsible for processing crude oil into petroleum products for domestic use and export.
-
A.
Mobil Oil Nigeria
Mobil Oil Nigeria is a major petroleum marketing and distribution company operating in Nigeria as part of the global ExxonMobil network.
-
B.
Niger Delta Development Commission
The Niger Delta Development Commission is a Nigerian federal agency tasked with promoting sustainable development, infrastructure, and environmental remediation in the oil-rich Niger Delta region.
-
C.
Petroleum Group
The Petroleum Group is a specialist division of the Geological Society of London focused on the study and professional exchange of knowledge related to petroleum geoscience and hydrocarbon exploration.
-
D.
Ganoub El Wadi Petroleum Holding Company
Ganoub El Wadi Petroleum Holding Company is an Egyptian state-owned oil and gas company responsible for exploration, production, and development activities primarily in the southern regions of Egypt.
-
E.
Egyptian General Petroleum Corporation
The Egyptian General Petroleum Corporation is Egypt’s state-owned oil and gas company responsible for managing the country’s hydrocarbon resources, exploration, production, and related downstream activities.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: hasRefinery Context triple: [Port Harcourt, hasRefinery, Port Harcourt Refining Company]
-
A.
hasRefuellingCapabilityFor
Indicates that one entity is capable of providing or performing refuelling operations for another entity.
-
B.
hasHarbor
Indicates that a place possesses or contains a harbor for docking or sheltering vessels.
-
C.
hasMajorProductionSystem
Indicates that an entity primarily operates, utilizes, or is characterized by a particular major production system.
-
D.
isIndustrialCenter
Indicates that a place functions as a major hub of industrial activity, production, or manufacturing within a region.
-
E.
hasPower
Indicates that one entity possesses authority, control, or influence over another entity or over a particular domain or resource.
- 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_69a4933208e88190891f5debab1b776d |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a4985e51908190a34aa82ea9dbee1e |
completed | March 1, 2026, 7:49 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a4c03256a08190955f8e8d5cda4b08 |
completed | March 1, 2026, 10:39 p.m. |
| NEDg | Description generation | batch_69a4c0d028c48190885a764277f9d28b |
completed | March 1, 2026, 10:42 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69a4c196fa948190b14aacba1276d353 |
completed | March 1, 2026, 10:45 p.m. |
| PD | Predicate disambiguation | batch_69a494b51ff08190a39f4168fd9a7ddf |
completed | March 1, 2026, 7:34 p.m. |
| PDg | Predicate description generation | batch_69a49857e1148190aa782b82675cf0b5 |
completed | March 1, 2026, 7:49 p.m. |
Created at: March 1, 2026, 7:32 p.m.