Triple

T5116907
Position Surface form Disambiguated ID Type / Status
Subject Baldwin Locomotive Works E115357 entity
Predicate majorFacility P105 FINISHED
Object Broad Street plant, Philadelphia
The Broad Street plant in Philadelphia was a principal manufacturing complex of the Baldwin Locomotive Works, once one of the world’s leading builders of steam locomotives.
E493347 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: Broad Street plant, Philadelphia | Statement: [Baldwin Locomotive Works, majorFacility, Broad Street plant, Philadelphia]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Broad Street plant, Philadelphia
Context triple: [Baldwin Locomotive Works, majorFacility, Broad Street plant, Philadelphia]
  • A. Broad Street (Philadelphia)
    Broad Street (Philadelphia) is a major north–south thoroughfare and one of the city’s primary streets, known for landmarks like City Hall and the Avenue of the Arts.
  • B. Fourth Street, Philadelphia
    Fourth Street in Philadelphia is a historic thoroughfare in the city's central area, known for its proximity to notable institutions and colonial-era sites.
  • C. Broad Street
    Broad Street is a historically significant thoroughfare in Selma, Alabama, known for its role in the civil rights movement and its collection of notable historic buildings.
  • D. Broad Street
    Broad Street is a former elevated terminal station in Lower Manhattan that once served as the southern terminus for New York City's BMT Nassau Street Line J train.
  • E. Old City, Philadelphia
    Old City, Philadelphia is a historic neighborhood in Center City known as the birthplace of American independence, home to landmarks like Independence Hall and the Liberty Bell.
  • 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: Broad Street plant, Philadelphia
Triple: [Baldwin Locomotive Works, majorFacility, Broad Street plant, Philadelphia]
Generated description
The Broad Street plant in Philadelphia was a principal manufacturing complex of the Baldwin Locomotive Works, once one of the world’s leading builders of steam locomotives.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Broad Street plant, Philadelphia
Target entity description: The Broad Street plant in Philadelphia was a principal manufacturing complex of the Baldwin Locomotive Works, once one of the world’s leading builders of steam locomotives.
  • A. Broad Street (Philadelphia)
    Broad Street (Philadelphia) is a major north–south thoroughfare and one of the city’s primary streets, known for landmarks like City Hall and the Avenue of the Arts.
  • B. Fourth Street, Philadelphia
    Fourth Street in Philadelphia is a historic thoroughfare in the city's central area, known for its proximity to notable institutions and colonial-era sites.
  • C. Broad Street
    Broad Street is a historically significant thoroughfare in Selma, Alabama, known for its role in the civil rights movement and its collection of notable historic buildings.
  • D. Broad Street
    Broad Street is a former elevated terminal station in Lower Manhattan that once served as the southern terminus for New York City's BMT Nassau Street Line J train.
  • E. Old City, Philadelphia
    Old City, Philadelphia is a historic neighborhood in Center City known as the birthplace of American independence, home to landmarks like Independence Hall and the Liberty Bell.
  • 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_69bd4441d1648190a54a533895041987 completed March 20, 2026, 12:57 p.m.
NER Named-entity recognition batch_69bd77ccb19c8190844c628ff7cfcca2 completed March 20, 2026, 4:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69bebaafd674819080b751216e5b6f70 completed March 21, 2026, 3:35 p.m.
NEDg Description generation batch_69bebb27171481909492cad522ac143b completed March 21, 2026, 3:37 p.m.
NED2 Entity disambiguation (via description) batch_69bebc71065881908b27a2808fc4e630 completed March 21, 2026, 3:42 p.m.
Created at: March 20, 2026, 1:41 p.m.