Triple

T13328804
Position Surface form Disambiguated ID Type / Status
Subject Guilford Rail System E317511 entity
Predicate usedReportingMarks P42928 FINISHED
Object MEC
MEC is the reporting mark for the Maine Central Railroad, a historic New England freight and passenger rail carrier.
 E1035910 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: MEC | Statement: [Guilford Rail System, usedReportingMarks, MEC]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: MEC
Context triple: [Guilford Rail System, usedReportingMarks, MEC]
  • A. MEC
    MEC is the commonly used acronym for Uruguay’s Ministry of Education and Culture, the national body responsible for educational policy and cultural affairs.
  • B. MECA
    MECA is the abbreviated name for the Metropolitan Entertainment & Convention Authority, the organization that manages major entertainment and convention facilities in Omaha, Nebraska.
  • C. MechE
    MechE is a common abbreviation for the academic and professional field of mechanical engineering, which focuses on the design, analysis, and manufacture of mechanical systems.
  • D. MEKA
    MEKA is the South Korean mobile exo-force unit in the Overwatch universe that pilots advanced mechs to defend the country from omnic threats.
  • E. Mehcad
    Mehcad is a masculine given name most notably borne by American actor and former model Mehcad Brooks.
  • 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: MEC
Triple: [Guilford Rail System, usedReportingMarks, MEC]
Generated description
MEC is the reporting mark for the Maine Central Railroad, a historic New England freight and passenger rail carrier.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: MEC
Target entity description: MEC is the reporting mark for the Maine Central Railroad, a historic New England freight and passenger rail carrier.
  • A. MEC
    MEC is the commonly used acronym for Uruguay’s Ministry of Education and Culture, the national body responsible for educational policy and cultural affairs.
  • B. MECA
    MECA is the abbreviated name for the Metropolitan Entertainment & Convention Authority, the organization that manages major entertainment and convention facilities in Omaha, Nebraska.
  • C. MechE
    MechE is a common abbreviation for the academic and professional field of mechanical engineering, which focuses on the design, analysis, and manufacture of mechanical systems.
  • D. MEKA
    MEKA is the South Korean mobile exo-force unit in the Overwatch universe that pilots advanced mechs to defend the country from omnic threats.
  • E. Mehcad
    Mehcad is a masculine given name most notably borne by American actor and former model Mehcad Brooks.
  • 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_69d806b4d62c81908d4ced1665414be5 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d9992e4f908190a6f172bf910cffb8 completed April 11, 2026, 12:43 a.m.
NED1 Entity disambiguation (via context triple) batch_69f71f329e148190a7741344b27ea663 completed May 3, 2026, 10:10 a.m.
NEDg Description generation batch_69f7231e7f5881908dde74ad279362ed completed May 3, 2026, 10:27 a.m.
NED2 Entity disambiguation (via description) batch_69f723a23524819082c15e048ebff350 completed May 3, 2026, 10:29 a.m.
Created at: April 9, 2026, 9:30 p.m.