Triple

T6462542
Position Surface form Disambiguated ID Type / Status
Subject Tom Thumb (locomotive) E142154 entity
Predicate locationOfRace P21366 FINISHED
Object Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills
The Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills is an early American railway line notable as the route of one of the first U.S. locomotive trials, including the famous race involving the Tom Thumb.
E594340 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: Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills | Statement: [Tom Thumb (locomotive), locationOfRace, Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills
Context triple: [Tom Thumb (locomotive), locationOfRace, Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills]
  • A. Pennsylvania Railroad tracks
    The Pennsylvania Railroad tracks are rail lines that were part of the extensive network operated by the historic Pennsylvania Railroad, once one of the largest and most influential railroads in the United States.
  • B. Baltimore rail network
    The Baltimore rail network is the interconnected system of freight and passenger rail lines serving the Baltimore, Maryland metropolitan area, linking the city to regional and national rail corridors.
  • C. East Subdivision to Baltimore
    East Subdivision to Baltimore is a key rail line of the Western Maryland Railway that provided an important route into the Baltimore area.
  • D. Panhandle Route of the Pennsylvania Railroad
    The Panhandle Route of the Pennsylvania Railroad was a major historic rail line that connected Pittsburgh with the American Midwest, serving as an important freight and passenger corridor in the 19th and early 20th centuries.
  • E. Baltimore Light Rail
    Baltimore Light Rail is a regional light rail transit system serving Baltimore, Maryland, and its surrounding suburbs.
  • 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: Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills
Triple: [Tom Thumb (locomotive), locationOfRace, Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills]
Generated description
The Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills is an early American railway line notable as the route of one of the first U.S. locomotive trials, including the famous race involving the Tom Thumb.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills
Target entity description: The Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills is an early American railway line notable as the route of one of the first U.S. locomotive trials, including the famous race involving the Tom Thumb.
  • A. Pennsylvania Railroad tracks
    The Pennsylvania Railroad tracks are rail lines that were part of the extensive network operated by the historic Pennsylvania Railroad, once one of the largest and most influential railroads in the United States.
  • B. Baltimore rail network
    The Baltimore rail network is the interconnected system of freight and passenger rail lines serving the Baltimore, Maryland metropolitan area, linking the city to regional and national rail corridors.
  • C. East Subdivision to Baltimore
    East Subdivision to Baltimore is a key rail line of the Western Maryland Railway that provided an important route into the Baltimore area.
  • D. Panhandle Route of the Pennsylvania Railroad
    The Panhandle Route of the Pennsylvania Railroad was a major historic rail line that connected Pittsburgh with the American Midwest, serving as an important freight and passenger corridor in the 19th and early 20th centuries.
  • E. Baltimore Light Rail
    Baltimore Light Rail is a regional light rail transit system serving Baltimore, Maryland, and its surrounding suburbs.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: locationOfRace
Context triple: [Tom Thumb (locomotive), locationOfRace, Baltimore and Ohio Railroad track between Baltimore and Ellicott's Mills]
  • A. locationOfCompetition chosen
    Indicates the place or venue where a competition or contest takes or took place.
  • B. positionOnRace
    Indicates the relative ranking or placement an entity holds within the context of a race or competitive event.
  • C. raceMeeting
    Indicates a competitive event where multiple participants race against each other under shared rules and conditions.
  • D. locationOfEventDescribed
    Indicates that one entity is the place or setting where the event described by another entity occurs.
  • E. hasRacecourse
    Indicates that an entity possesses, contains, or is associated with a racecourse facility or track.
  • 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_69c008d2f91c8190a8178767a35e08fc completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c069f7e5908190ae4d8da2b14d274f completed March 22, 2026, 10:15 p.m.
NED1 Entity disambiguation (via context triple) batch_69c64be4e6888190a685f447e9950163 completed March 27, 2026, 9:20 a.m.
NEDg Description generation batch_69c64e4413f481908561a86bc9a9b0b2 completed March 27, 2026, 9:30 a.m.
NED2 Entity disambiguation (via description) batch_69c64ec0d40881908fda2e994f0f6ed5 completed March 27, 2026, 9:32 a.m.
PD Predicate disambiguation batch_69c0673d46a08190bc8bcd29f9555fe7 completed March 22, 2026, 10:03 p.m.
Created at: March 22, 2026, 4:49 p.m.