Triple

T19450000
Position Surface form Disambiguated ID Type / Status
Subject Fell centre rail system E486590 entity
Predicate distinguishedFrom P1612 FINISHED
Object Locher rack system
The Locher rack system is a specialized rack railway design that uses horizontal, side-mounted cogwheels engaging with a centrally located rack bar to enable safe operation on extremely steep gradients.
E1376371 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: Locher rack system | Statement: [Fell centre rail system, distinguishedFrom, Locher rack system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Locher rack system
Context triple: [Fell centre rail system, distinguishedFrom, Locher rack system]
  • A. Riggenbach rack system
    The Riggenbach rack system is an early and widely used rack railway technology that employs a ladder-like central rail to enable trains to climb steep gradients safely.
  • B. Prismaflex system
    The Prismaflex system is an advanced medical device platform used in intensive care units to provide continuous renal replacement therapy and other extracorporeal blood treatments for critically ill patients.
  • C. Igla docking system
    The Igla docking system was an early Soviet-era spacecraft rendezvous and docking technology used before being superseded by more advanced systems.
  • D. Abt rack system
    The Abt rack system is a railway rack-and-pinion mechanism that uses multiple toothed rack bars and pinions to enable trains to safely operate on steep gradients.
  • E. Warren’s Shaft system
    Warren’s Shaft system is an ancient underground water system in Jerusalem’s City of David, featuring tunnels and a vertical shaft used to access the Gihon Spring for the city’s early inhabitants.
  • 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: Locher rack system
Triple: [Fell centre rail system, distinguishedFrom, Locher rack system]
Generated description
The Locher rack system is a specialized rack railway design that uses horizontal, side-mounted cogwheels engaging with a centrally located rack bar to enable safe operation on extremely steep gradients.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Locher rack system
Target entity description: The Locher rack system is a specialized rack railway design that uses horizontal, side-mounted cogwheels engaging with a centrally located rack bar to enable safe operation on extremely steep gradients.
  • A. Riggenbach rack system
    The Riggenbach rack system is an early and widely used rack railway technology that employs a ladder-like central rail to enable trains to climb steep gradients safely.
  • B. Prismaflex system
    The Prismaflex system is an advanced medical device platform used in intensive care units to provide continuous renal replacement therapy and other extracorporeal blood treatments for critically ill patients.
  • C. Igla docking system
    The Igla docking system was an early Soviet-era spacecraft rendezvous and docking technology used before being superseded by more advanced systems.
  • D. Abt rack system
    The Abt rack system is a railway rack-and-pinion mechanism that uses multiple toothed rack bars and pinions to enable trains to safely operate on steep gradients.
  • E. Warren’s Shaft system
    Warren’s Shaft system is an ancient underground water system in Jerusalem’s City of David, featuring tunnels and a vertical shaft used to access the Gihon Spring for the city’s early inhabitants.
  • 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_69d8e8d7ad488190a3373045029b0f3b completed April 10, 2026, 12:11 p.m.
NER Named-entity recognition batch_69e6338caeb48190aeb1d511996984e3 completed April 20, 2026, 2:09 p.m.
NED1 Entity disambiguation (via context triple) batch_6a073b3175248190817aedbfd95927dc completed May 15, 2026, 3:26 p.m.
NEDg Description generation batch_6a073be7e28c8190999dacec37a2f3b4 completed May 15, 2026, 3:29 p.m.
NED2 Entity disambiguation (via description) batch_6a073c9461d08190a2b89ebd16e66a58 completed May 15, 2026, 3:32 p.m.
Created at: April 10, 2026, 1:38 p.m.