Triple

T10658002

Position	Surface form	Disambiguated ID	Type / Status
Subject	Koyna Dam	`E251145`	entity
Predicate	operator	`P179`	FINISHED
Object	Maharashtra State Electricity Board Maharashtra State Electricity Board is a former state-owned utility responsible for electricity generation, transmission, and distribution across the Indian state of Maharashtra.	`E877612`	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: Maharashtra State Electricity Board | Statement: [Koyna Dam, operator, Maharashtra State Electricity Board]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Maharashtra State Electricity Board
Context triple: [Koyna Dam, operator, Maharashtra State Electricity Board]

A. Karnataka Power Corporation Limited
Karnataka Power Corporation Limited is a state-owned enterprise responsible for generating and supplying electricity in the Indian state of Karnataka through a portfolio of thermal, hydroelectric, and renewable power projects.
B. Brihanmumbai Electric Supply and Transport
Brihanmumbai Electric Supply and Transport (BEST) is Mumbai’s primary public transport and electricity utility undertaking, operating an extensive bus network across the city and surrounding region.
C. Tamil Nadu Generation and Distribution Corporation Limited
Tamil Nadu Generation and Distribution Corporation Limited is the state-owned utility responsible for electricity generation and distribution across the Indian state of Tamil Nadu.
D. Punjab State Power Corporation Limited
Punjab State Power Corporation Limited is the government-owned electricity generation and distribution company responsible for managing Punjab’s power infrastructure and supply.
E. Andhra Pradesh Power Generation Corporation
Andhra Pradesh Power Generation Corporation is a state-owned power utility responsible for electricity generation and operation of major power plants in the Indian state of Andhra Pradesh.
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: Maharashtra State Electricity Board
Triple: [Koyna Dam, operator, Maharashtra State Electricity Board]

Generated description

Maharashtra State Electricity Board is a former state-owned utility responsible for electricity generation, transmission, and distribution across the Indian state of Maharashtra.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Maharashtra State Electricity Board
Target entity description: Maharashtra State Electricity Board is a former state-owned utility responsible for electricity generation, transmission, and distribution across the Indian state of Maharashtra.

A. Karnataka Power Corporation Limited
Karnataka Power Corporation Limited is a state-owned enterprise responsible for generating and supplying electricity in the Indian state of Karnataka through a portfolio of thermal, hydroelectric, and renewable power projects.
B. Brihanmumbai Electric Supply and Transport
Brihanmumbai Electric Supply and Transport (BEST) is Mumbai’s primary public transport and electricity utility undertaking, operating an extensive bus network across the city and surrounding region.
C. Tamil Nadu Generation and Distribution Corporation Limited
Tamil Nadu Generation and Distribution Corporation Limited is the state-owned utility responsible for electricity generation and distribution across the Indian state of Tamil Nadu.
D. Punjab State Power Corporation Limited
Punjab State Power Corporation Limited is the government-owned electricity generation and distribution company responsible for managing Punjab’s power infrastructure and supply.
E. Andhra Pradesh Power Generation Corporation
Andhra Pradesh Power Generation Corporation is a state-owned power utility responsible for electricity generation and operation of major power plants in the Indian state of Andhra Pradesh.
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_69d6aa5a4c4881908f39be6efe5981e5`	completed	April 8, 2026, 7:19 p.m.
NER	Named-entity recognition	`batch_69d6e01643a88190abc7c16fd0f85e53`	completed	April 8, 2026, 11:09 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69d97a8375bc8190a79c09ba2626ce50`	completed	April 10, 2026, 10:32 p.m.
NEDg	Description generation	`batch_69d97e7330cc81908d7e35cbba5b5b0e`	completed	April 10, 2026, 10:49 p.m.
NED2	Entity disambiguation (via description)	`batch_69d97ef8d90c81909a2bc3adbb1f05bf`	completed	April 10, 2026, 10:51 p.m.

Created at: April 8, 2026, 9:07 p.m.