Triple

T2649113

Position	Surface form	Disambiguated ID	Type / Status
Subject	Rybinsk Reservoir	`E53854`	entity
Predicate	formedBy	`P972`	FINISHED
Object	Rybinsk Hydroelectric Station Rybinsk Hydroelectric Station is a major Soviet-era hydroelectric power plant on the Volga River in Russia, known for creating one of the world’s largest artificial reservoirs at the time of its construction.	`E295554`	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: Rybinsk Hydroelectric Station | Statement: [Rybinsk Reservoir, formedBy, Rybinsk Hydroelectric Station]

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

Target entity: Rybinsk Hydroelectric Station
Context triple: [Rybinsk Reservoir, formedBy, Rybinsk Hydroelectric Station]

A. Saratov Hydroelectric Station
Saratov Hydroelectric Station is a major hydroelectric power plant on the Volga River in Russia, providing electricity generation and water regulation for the surrounding region.
B. Ivankovo Hydroelectric Station
Ivankovo Hydroelectric Station is a major Soviet-era hydroelectric power plant on the Volga River in Russia, forming part of the Upper Volga cascade and supplying electricity as well as regulating water levels for navigation and water management.
C. Volga Hydroelectric Station dam
The Volga Hydroelectric Station dam is a major Soviet-era hydroelectric dam on the Volga River near Volgograd, Russia, forming one of the largest reservoirs in Europe and serving as a key source of power and navigation control in the region.
D. Dniester Hydroelectric Station
The Dniester Hydroelectric Station is a major hydroelectric power plant complex on the Dniester River, providing electricity generation, water regulation, and flood control for the surrounding region.
E. Tsimlyansk Reservoir
Tsimlyansk Reservoir is a large artificial lake on the Don River in southwestern Russia, created for hydroelectric power, irrigation, and navigation.
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: Rybinsk Hydroelectric Station
Triple: [Rybinsk Reservoir, formedBy, Rybinsk Hydroelectric Station]

Generated description

Rybinsk Hydroelectric Station is a major Soviet-era hydroelectric power plant on the Volga River in Russia, known for creating one of the world’s largest artificial reservoirs at the time of its construction.

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

Target entity: Rybinsk Hydroelectric Station
Target entity description: Rybinsk Hydroelectric Station is a major Soviet-era hydroelectric power plant on the Volga River in Russia, known for creating one of the world’s largest artificial reservoirs at the time of its construction.

A. Saratov Hydroelectric Station
Saratov Hydroelectric Station is a major hydroelectric power plant on the Volga River in Russia, providing electricity generation and water regulation for the surrounding region.
B. Ivankovo Hydroelectric Station
Ivankovo Hydroelectric Station is a major Soviet-era hydroelectric power plant on the Volga River in Russia, forming part of the Upper Volga cascade and supplying electricity as well as regulating water levels for navigation and water management.
C. Volga Hydroelectric Station dam
The Volga Hydroelectric Station dam is a major Soviet-era hydroelectric dam on the Volga River near Volgograd, Russia, forming one of the largest reservoirs in Europe and serving as a key source of power and navigation control in the region.
D. Dniester Hydroelectric Station
The Dniester Hydroelectric Station is a major hydroelectric power plant complex on the Dniester River, providing electricity generation, water regulation, and flood control for the surrounding region.
E. Tsimlyansk Reservoir
Tsimlyansk Reservoir is a large artificial lake on the Don River in southwestern Russia, created for hydroelectric power, irrigation, and navigation.
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_69ab495e192081909c77b622e8e7e15a`	completed	March 6, 2026, 9:38 p.m.
NER	Named-entity recognition	`batch_69abd91ca1288190ba302b04bac4c153`	completed	March 7, 2026, 7:51 a.m.
NED1	Entity disambiguation (via context triple)	`batch_69afbbb328a88190b0ef889cbbe3bea3`	completed	March 10, 2026, 6:35 a.m.
NEDg	Description generation	`batch_69afbce109f48190be1a31d9300dbee6`	completed	March 10, 2026, 6:40 a.m.
NED2	Entity disambiguation (via description)	`batch_69afbda490ac8190bb12598e26b91677`	completed	March 10, 2026, 6:43 a.m.

Created at: March 6, 2026, 9:53 p.m.