Triple
T20170920
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | NTPC Limited |
E491954
|
entity |
| Predicate | hasSubsidiary |
P254
|
FINISHED |
| Object | NTPC Mining Limited |
—
|
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: NTPC Mining Limited | Statement: [NTPC Limited, hasSubsidiary, NTPC Mining Limited]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: NTPC Mining Limited Context triple: [NTPC Limited, hasSubsidiary, NTPC Mining Limited]
-
A.
NTPC Limited
NTPC Limited is India’s largest state-owned power generation company, primarily engaged in producing and selling electricity from coal, gas, hydro, and renewable sources across the country.
-
B.
NHPC Limited
NHPC Limited is an Indian government-owned hydropower company that develops, operates, and maintains large hydroelectric projects across the country.
-
C.
Coal India Limited
Coal India Limited is a state-owned Indian coal mining company and one of the largest coal producers in the world.
-
D.
Mishra Dhatu Nigam Limited
Mishra Dhatu Nigam Limited is an Indian public sector company specializing in the manufacture of superalloys, special steels, and titanium alloys primarily for strategic sectors such as defence, space, and nuclear energy.
-
E.
Bharat Coking Coal Limited
Bharat Coking Coal Limited is an Indian government-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in producing coking coal from mines in the Jharia and Raniganj coalfields.
- 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: NTPC Mining Limited Target entity description: NTPC Mining Limited is a coal mining subsidiary of India’s state-owned power utility NTPC Limited, established to secure fuel supply for its thermal power plants.
-
A.
NTPC Limited
chosen
NTPC Limited is India’s largest state-owned power generation company, primarily engaged in producing and selling electricity from coal, gas, hydro, and renewable sources across the country.
-
B.
NHPC Limited
NHPC Limited is an Indian government-owned hydropower company that develops, operates, and maintains large hydroelectric projects across the country.
-
C.
Coal India Limited
Coal India Limited is a state-owned Indian coal mining company and one of the largest coal producers in the world.
-
D.
Mishra Dhatu Nigam Limited
Mishra Dhatu Nigam Limited is an Indian public sector company specializing in the manufacture of superalloys, special steels, and titanium alloys primarily for strategic sectors such as defence, space, and nuclear energy.
-
E.
Bharat Coking Coal Limited
Bharat Coking Coal Limited is an Indian government-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in producing coking coal from mines in the Jharia and Raniganj coalfields.
- F. None of above.
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_69da6266c6888190bc1a3ecf24814d34 |
completed | April 11, 2026, 3:01 p.m. |
| NER | Named-entity recognition | batch_69e66848ae3c8190aa5fde66da35a89a |
completed | April 20, 2026, 5:54 p.m. |
Created at: April 11, 2026, 11:35 p.m.