Triple

T38607153
Position Surface form Disambiguated ID Type / Status
Subject Tokyo electric power grid E934372 entity
Predicate hasHVDCInterconnection P24733 FINISHED
Object Sakuma Frequency Converter Station
Sakuma Frequency Converter Station is a key Japanese high-voltage direct current (HVDC) facility that links and stabilizes the 50 Hz and 60 Hz power systems within the country’s electric grid.
 E2276112 NE FINISHED

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: Sakuma Frequency Converter Station | Statement: [Tokyo electric power grid, hasHVDCInterconnection, Sakuma Frequency Converter Station]
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: Sakuma Frequency Converter Station
Triple: [Tokyo electric power grid, hasHVDCInterconnection, Sakuma Frequency Converter Station]
Generated description
Sakuma Frequency Converter Station is a key Japanese high-voltage direct current (HVDC) facility that links and stabilizes the 50 Hz and 60 Hz power systems within the country’s electric grid.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: hasHVDCInterconnection
Context triple: [Tokyo electric power grid, hasHVDCInterconnection, Sakuma Frequency Converter Station]
  • A. hasHVDCConverterStationNearby
    Indicates that an entity is located close to a high-voltage direct current (HVDC) converter station.
  • B. interconnectionMethodToOtherGrids
    Indicates the method or mechanism by which one grid is physically or operationally interconnected to other grids.
  • C. hasMajorInterconnection
    Indicates that there exists a significant, primary, or high-capacity connection or linkage between two entities.
  • D. hasGridConnection
    Indicates that an entity is connected to an electrical grid, enabling it to receive or supply grid-based power.
  • E. gridInterconnection chosen
    Indicates a connection or linkage between electrical grids that allows power exchange or coordinated operation.
  • F. None of above.

Provenance (6 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_69f76eccd6d081909ccce171011739a1 completed May 3, 2026, 3:50 p.m.
NER Named-entity recognition batch_69fcdb0de8c08190928cd1323f80ab5c completed May 7, 2026, 6:33 p.m.
NED1 Entity disambiguation (via context triple) batch_6a41eaac6adc81909aab5ae41590237d completed June 29, 2026, 3:46 a.m.
NEDg Description generation batch_6a41eb3a46008190b64f71f254890bec completed June 29, 2026, 3:49 a.m.
NED2 Entity disambiguation (via description) batch_6a41ebbcc9dc81908c568a8a4603dfb2 completed June 29, 2026, 3:51 a.m.
PD Predicate disambiguation batch_69fcd9017dd88190b32a73fe78909740 completed May 7, 2026, 6:25 p.m.
Created at: May 3, 2026, 4:32 p.m.