Triple

T327824
Position Surface form Disambiguated ID Type / Status
Subject Antiproton Decelerator E6557 entity
Predicate sitedAt P40 FINISHED
Object CERN Prevessin–Meyrin site
The CERN Prevessin–Meyrin site is one of CERN’s main campuses on the French–Swiss border, hosting key accelerator and experimental facilities in the laboratory’s particle physics complex.
E45455 NE FINISHED

How this triple was built (5 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: CERN Prevessin–Meyrin site | Statement: [Antiproton Decelerator, sitedAt, CERN Prevessin–Meyrin site]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: CERN Prevessin–Meyrin site
Context triple: [Antiproton Decelerator, sitedAt, CERN Prevessin–Meyrin site]
  • A. CERN accelerator complex
    The CERN accelerator complex is a network of interconnected particle accelerators and beamlines near Geneva that produce and prepare high-energy particle beams for experiments such as those at the Large Hadron Collider.
  • B. CERN
    CERN is the European Organization for Nuclear Research, renowned for its large particle accelerators and fundamental physics experiments that have led to major discoveries such as the Higgs boson.
  • C. North Area of CERN SPS
    The North Area of CERN’s Super Proton Synchrotron (SPS) is a major experimental zone hosting fixed-target high-energy physics experiments that use proton beams extracted from the SPS accelerator.
  • D. CERN Large Hadron Collider surface facilities
    The CERN Large Hadron Collider surface facilities are the above-ground buildings and infrastructure that support and control the LHC’s particle physics experiments near Geneva.
  • E. Lausanne, Switzerland
    Lausanne, Switzerland is a picturesque city on the shores of Lake Geneva known for its role as an Olympic capital and its vibrant cultural and academic life.
  • 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: CERN Prevessin–Meyrin site
Triple: [Antiproton Decelerator, sitedAt, CERN Prevessin–Meyrin site]
Generated description
The CERN Prevessin–Meyrin site is one of CERN’s main campuses on the French–Swiss border, hosting key accelerator and experimental facilities in the laboratory’s particle physics complex.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: CERN Prevessin–Meyrin site
Target entity description: The CERN Prevessin–Meyrin site is one of CERN’s main campuses on the French–Swiss border, hosting key accelerator and experimental facilities in the laboratory’s particle physics complex.
  • A. CERN accelerator complex
    The CERN accelerator complex is a network of interconnected particle accelerators and beamlines near Geneva that produce and prepare high-energy particle beams for experiments such as those at the Large Hadron Collider.
  • B. CERN
    CERN is the European Organization for Nuclear Research, renowned for its large particle accelerators and fundamental physics experiments that have led to major discoveries such as the Higgs boson.
  • C. North Area of CERN SPS
    The North Area of CERN’s Super Proton Synchrotron (SPS) is a major experimental zone hosting fixed-target high-energy physics experiments that use proton beams extracted from the SPS accelerator.
  • D. CERN Large Hadron Collider surface facilities
    The CERN Large Hadron Collider surface facilities are the above-ground buildings and infrastructure that support and control the LHC’s particle physics experiments near Geneva.
  • E. Lausanne, Switzerland
    Lausanne, Switzerland is a picturesque city on the shores of Lake Geneva known for its role as an Olympic capital and its vibrant cultural and academic life.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: sitedAt
Context triple: [Antiproton Decelerator, sitedAt, CERN Prevessin–Meyrin site]
  • A. isSiteOf
    Indicates that a location or place serves as the setting or host for a particular event, activity, or feature.
  • B. locatedIn chosen
    Indicates that one entity exists or is situated within the spatial, administrative, or conceptual boundaries of another entity.
  • C. formerSiteOf
    Indicates that a location previously hosted or contained something (such as a structure, organization, or event) that is no longer present there.
  • D. locatedUnder
    Indicates that one entity is positioned directly or generally beneath another entity in space.
  • E. locatedAlong
    Indicates that one entity is situated adjacent to, or running beside, the length or course of another linear feature (such as a road, river, or railway).
  • 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_69a2e7933d6c8190bb2592ad13286ef2 completed Feb. 28, 2026, 1:03 p.m.
NER Named-entity recognition batch_69a2ea98fa2c8190a5b44f4a26543a17 completed Feb. 28, 2026, 1:16 p.m.
NED1 Entity disambiguation (via context triple) batch_69a3e011b4f08190a859bde5bdd40f21 completed March 1, 2026, 6:43 a.m.
NEDg Description generation batch_69a3e0ab4a388190abd65cdcf1478d56 completed March 1, 2026, 6:46 a.m.
NED2 Entity disambiguation (via description) batch_69a3e10a4ec48190bb9e62c29054193a completed March 1, 2026, 6:47 a.m.
PD Predicate disambiguation batch_69a2e94aab1c8190b8654708c87eeb91 completed Feb. 28, 2026, 1:10 p.m.
Created at: Feb. 28, 2026, 1:08 p.m.