Triple

T375047
Position Surface form Disambiguated ID Type / Status
Subject Broad Street Station (Philadelphia) E8352 entity
Predicate adjacentTo P224 FINISHED
Object Pennsylvania Railroad viaduct along Filbert Street
The Pennsylvania Railroad viaduct along Filbert Street was an elevated rail structure in central Philadelphia that carried Pennsylvania Railroad tracks into Broad Street Station above the city streets.
E8352 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: Pennsylvania Railroad viaduct along Filbert Street | Statement: [Broad Street Station (Philadelphia), adjacentTo, Pennsylvania Railroad viaduct along Filbert Street]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad viaduct along Filbert Street
Context triple: [Broad Street Station (Philadelphia), adjacentTo, Pennsylvania Railroad viaduct along Filbert Street]
  • A. 14th Street Bridge complex
    The 14th Street Bridge complex is a group of highway and railway bridges over the Potomac River that serves as a major transportation link between Northern Virginia and Washington, D.C.
  • B. Broad Street Station (Philadelphia)
    Broad Street Station (Philadelphia) was a grand former railroad terminal in Center City Philadelphia that served as the Pennsylvania Railroad’s primary passenger station and a major hub of rail travel in the late 19th and early 20th centuries.
  • C. 14th Street Bridge
    The 14th Street Bridge is a major bridge complex over the Potomac River in the Washington, D.C. area that carries multiple highway and rail routes between Virginia and the nation’s capital.
  • D. Third Avenue Bridge
    The Third Avenue Bridge is a major swing bridge in New York City that carries traffic between Manhattan and the Bronx.
  • E. 30th Street Station
    30th Street Station is a major intercity and regional rail hub in Philadelphia, serving Amtrak, SEPTA, and NJ Transit and connecting the city to destinations across the Northeast and beyond.
  • 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: Pennsylvania Railroad viaduct along Filbert Street
Triple: [Broad Street Station (Philadelphia), adjacentTo, Pennsylvania Railroad viaduct along Filbert Street]
Generated description
The Pennsylvania Railroad viaduct along Filbert Street was an elevated rail structure in central Philadelphia that carried Pennsylvania Railroad tracks into Broad Street Station above the city streets.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Pennsylvania Railroad viaduct along Filbert Street
Target entity description: The Pennsylvania Railroad viaduct along Filbert Street was an elevated rail structure in central Philadelphia that carried Pennsylvania Railroad tracks into Broad Street Station above the city streets.
  • A. 14th Street Bridge complex
    The 14th Street Bridge complex is a group of highway and railway bridges over the Potomac River that serves as a major transportation link between Northern Virginia and Washington, D.C.
  • B. Broad Street Station (Philadelphia) chosen
    Broad Street Station (Philadelphia) was a grand former railroad terminal in Center City Philadelphia that served as the Pennsylvania Railroad’s primary passenger station and a major hub of rail travel in the late 19th and early 20th centuries.
  • C. 14th Street Bridge
    The 14th Street Bridge is a major bridge complex over the Potomac River in the Washington, D.C. area that carries multiple highway and rail routes between Virginia and the nation’s capital.
  • D. Third Avenue Bridge
    The Third Avenue Bridge is a major swing bridge in New York City that carries traffic between Manhattan and the Bronx.
  • E. 30th Street Station
    30th Street Station is a major intercity and regional rail hub in Philadelphia, serving Amtrak, SEPTA, and NJ Transit and connecting the city to destinations across the Northeast and beyond.
  • F. None of above.

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_69a2e7f2ec648190b42bc7db424f8109 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2ec1585648190943f1c698e9b2d81 completed Feb. 28, 2026, 1:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69a3f4dbf49081908ccd464668483b77 completed March 1, 2026, 8:12 a.m.
NEDg Description generation batch_69a3f6d18c488190ab509ded4d5b0367 completed March 1, 2026, 8:20 a.m.
NED2 Entity disambiguation (via description) batch_69a3fa368edc8190ac00be2189df7cf9 completed March 1, 2026, 8:35 a.m.
Created at: Feb. 28, 2026, 1:08 p.m.