Triple

T2168258
Position Surface form Disambiguated ID Type / Status
Subject Severn Tunnel E46960 entity
Predicate hasStructure P35 FINISHED
Object Sudbrook pumping station
Sudbrook pumping station is a historic Victorian-era facility in Wales built to manage water ingress for the Severn Tunnel railway line beneath the River Severn.
E239732 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: Sudbrook pumping station | Statement: [Severn Tunnel, hasStructure, Sudbrook pumping station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Sudbrook pumping station
Context triple: [Severn Tunnel, hasStructure, Sudbrook pumping station]
  • A. Cruquius Pumping Station
    Cruquius Pumping Station is a historic 19th-century Dutch steam-powered pumping station, now a museum, renowned for its role in draining the Haarlemmermeer lake and showcasing monumental industrial engineering.
  • B. Kempton Park Reservoirs
    Kempton Park Reservoirs are a series of large water storage reservoirs in southwest London that form part of the region’s public water supply infrastructure and associated nature conservation areas.
  • C. Agecroft power station
    Agecroft power station was a coal-fired power station in Pendlebury, Greater Manchester, that operated for much of the 20th century and played a significant role in the region’s industrial energy supply.
  • D. Seaton Sluice
    Seaton Sluice is a coastal village in Northumberland, England, known for its historic harbour, maritime heritage, and scenic North Sea shoreline.
  • E. Edmonston Pumping Plant
    Edmonston Pumping Plant is a major California water infrastructure facility that lifts water over the Tehachapi Mountains, enabling its delivery from Northern to Southern California.
  • 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: Sudbrook pumping station
Triple: [Severn Tunnel, hasStructure, Sudbrook pumping station]
Generated description
Sudbrook pumping station is a historic Victorian-era facility in Wales built to manage water ingress for the Severn Tunnel railway line beneath the River Severn.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Sudbrook pumping station
Target entity description: Sudbrook pumping station is a historic Victorian-era facility in Wales built to manage water ingress for the Severn Tunnel railway line beneath the River Severn.
  • A. Cruquius Pumping Station
    Cruquius Pumping Station is a historic 19th-century Dutch steam-powered pumping station, now a museum, renowned for its role in draining the Haarlemmermeer lake and showcasing monumental industrial engineering.
  • B. Kempton Park Reservoirs
    Kempton Park Reservoirs are a series of large water storage reservoirs in southwest London that form part of the region’s public water supply infrastructure and associated nature conservation areas.
  • C. Agecroft power station
    Agecroft power station was a coal-fired power station in Pendlebury, Greater Manchester, that operated for much of the 20th century and played a significant role in the region’s industrial energy supply.
  • D. Seaton Sluice
    Seaton Sluice is a coastal village in Northumberland, England, known for its historic harbour, maritime heritage, and scenic North Sea shoreline.
  • E. Edmonston Pumping Plant
    Edmonston Pumping Plant is a major California water infrastructure facility that lifts water over the Tehachapi Mountains, enabling its delivery from Northern to Southern California.
  • 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_69a88a184cbc8190877791f6552c2484 completed March 4, 2026, 7:38 p.m.
NER Named-entity recognition batch_69abbeadaed481908d6afa942d7155b8 completed March 7, 2026, 5:59 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae58f26334819095202544d37e6850 completed March 9, 2026, 5:21 a.m.
NEDg Description generation batch_69ae5a2055488190855ac173d1e3ad11 completed March 9, 2026, 5:26 a.m.
NED2 Entity disambiguation (via description) batch_69ae5a810b588190a1bb538be46b2010 completed March 9, 2026, 5:28 a.m.
Created at: March 4, 2026, 7:45 p.m.