Triple

T7364883
Position Surface form Disambiguated ID Type / Status
Subject Raniganj coalfield E169844 entity
Predicate operator P179 FINISHED
Object Eastern Coalfields Limited
Eastern Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in coal production in the eastern region of the country.
 E659362 NE FINISHED

How this triple was built (4 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: Eastern Coalfields Limited | Statement: [Raniganj coalfield, operator, Eastern Coalfields Limited]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Eastern Coalfields Limited
Context triple: [Raniganj coalfield, operator, Eastern Coalfields Limited]
  • A. Northern Coalfields Limited
    Northern Coalfields Limited is an Indian state-owned coal mining company and a major subsidiary of Coal India Limited, primarily operating large open-cast mines in the Singrauli coalfields.
  • B. 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.
  • C. Durgapur Projects Limited
    Durgapur Projects Limited is a state-owned power generation and distribution company based in Durgapur, West Bengal, India.
  • D. Tata Steel Jamshedpur Works
    Tata Steel Jamshedpur Works is a major integrated steel plant in Jamshedpur, India, and one of the oldest and most significant industrial complexes in the country.
  • E. 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.
  • 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: Eastern Coalfields Limited
Triple: [Raniganj coalfield, operator, Eastern Coalfields Limited]
Generated description
Eastern Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in coal production in the eastern region of the country.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Eastern Coalfields Limited
Target entity description: Eastern Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in coal production in the eastern region of the country.
  • A. Northern Coalfields Limited
    Northern Coalfields Limited is an Indian state-owned coal mining company and a major subsidiary of Coal India Limited, primarily operating large open-cast mines in the Singrauli coalfields.
  • B. 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.
  • C. Durgapur Projects Limited
    Durgapur Projects Limited is a state-owned power generation and distribution company based in Durgapur, West Bengal, India.
  • D. Tata Steel Jamshedpur Works
    Tata Steel Jamshedpur Works is a major integrated steel plant in Jamshedpur, India, and one of the oldest and most significant industrial complexes in the country.
  • E. 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.
  • F. None of above. chosen

Provenance (5 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_69c68a5ade988190885b7175f63b7534 completed March 27, 2026, 1:47 p.m.
NER Named-entity recognition batch_69c6f161d76081909da6d698fb3d8bb1 completed March 27, 2026, 9:06 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7fab704008190ad07e12ead1a13ed completed March 28, 2026, 3:58 p.m.
NEDg Description generation batch_69c7fdc524c081909ba9f584b783eded completed March 28, 2026, 4:11 p.m.
NED2 Entity disambiguation (via description) batch_69c7fe4702348190acc48eaec934630a completed March 28, 2026, 4:13 p.m.
Created at: March 27, 2026, 3:06 p.m.