Triple
T18132650
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Dehradun district |
E434051
|
entity |
| Predicate | hasInstitution |
P186
|
FINISHED |
| Object | Oil and Natural Gas Corporation headquarters |
—
|
NE NERFINISHED |
How this triple was built (3 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: Oil and Natural Gas Corporation headquarters | Statement: [Dehradun district, hasInstitution, Oil and Natural Gas Corporation headquarters]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Oil and Natural Gas Corporation headquarters Context triple: [Dehradun district, hasInstitution, Oil and Natural Gas Corporation headquarters]
-
A.
Numaligarh Refinery Limited
Numaligarh Refinery Limited is a public sector oil refinery company in India known for operating the Numaligarh Refinery in Assam and producing a range of petroleum products.
-
B.
ONGC Videsh
ONGC Videsh is the international exploration and production arm of India’s Oil and Natural Gas Corporation (ONGC), responsible for acquiring and managing the company’s overseas oil and gas assets.
-
C.
Bharat Heavy Electricals Limited, Tiruchirappalli
Bharat Heavy Electricals Limited, Tiruchirappalli is a major manufacturing complex of India’s state-owned engineering and power equipment company, known especially for producing boilers and heavy power plant components.
-
D.
Indian Oil Corporation
Indian Oil Corporation is India’s largest state-owned oil and gas company, engaged in refining, transporting, and marketing petroleum products across the country and abroad.
-
E.
Ministry of Petroleum and Natural Gas (India)
The Ministry of Petroleum and Natural Gas (India) is the central government body responsible for overseeing the exploration, production, refining, distribution, and pricing of petroleum, natural gas, and related products in India.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Oil and Natural Gas Corporation headquarters Target entity description: The Oil and Natural Gas Corporation headquarters is the main administrative and corporate office complex of India’s largest state-owned oil and gas exploration and production company.
-
A.
Numaligarh Refinery Limited
Numaligarh Refinery Limited is a public sector oil refinery company in India known for operating the Numaligarh Refinery in Assam and producing a range of petroleum products.
-
B.
ONGC Videsh
ONGC Videsh is the international exploration and production arm of India’s Oil and Natural Gas Corporation (ONGC), responsible for acquiring and managing the company’s overseas oil and gas assets.
-
C.
Bharat Heavy Electricals Limited, Tiruchirappalli
Bharat Heavy Electricals Limited, Tiruchirappalli is a major manufacturing complex of India’s state-owned engineering and power equipment company, known especially for producing boilers and heavy power plant components.
-
D.
Indian Oil Corporation
Indian Oil Corporation is India’s largest state-owned oil and gas company, engaged in refining, transporting, and marketing petroleum products across the country and abroad.
-
E.
Ministry of Petroleum and Natural Gas (India)
The Ministry of Petroleum and Natural Gas (India) is the central government body responsible for overseeing the exploration, production, refining, distribution, and pricing of petroleum, natural gas, and related products in India.
- F. None of above. chosen
Provenance (2 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_69d8b909e8cc81908df4cc2b8ea6d11f |
completed | April 10, 2026, 8:47 a.m. |
| NER | Named-entity recognition | batch_69e4de04321c81909c0b9d47757720fd |
completed | April 19, 2026, 1:52 p.m. |
Created at: April 10, 2026, 10:29 a.m.