Triple

T508772
Position Surface form Disambiguated ID Type / Status
Subject Philadelphia, Wilmington and Baltimore Railroad E10558 entity
Predicate notableStructure P1544 FINISHED
Object Newkirk Viaduct
The Newkirk Viaduct is a historic 19th-century railroad bridge in Philadelphia that played a key role in early rail travel along the Northeast Corridor.
E93602 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: Newkirk Viaduct | Statement: [Philadelphia, Wilmington and Baltimore Railroad, notableStructure, Newkirk Viaduct]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Newkirk Viaduct
Context triple: [Philadelphia, Wilmington and Baltimore Railroad, notableStructure, Newkirk Viaduct]
  • A. Bixby Creek Bridge
    Bixby Creek Bridge is an iconic reinforced-concrete arch bridge along California’s scenic Highway 1, renowned for its dramatic coastal setting and frequent appearance in photography and film.
  • B. Sagamore Bridge
    Sagamore Bridge is a major highway bridge in Massachusetts that carries traffic over the Cape Cod Canal, serving as one of the primary gateways to Cape Cod.
  • C. Strawberry Creek bridge
    Strawberry Creek bridge is a pedestrian bridge on the UC Berkeley campus that spans Strawberry Creek near Sather Gate, serving as a key walkway between central campus areas.
  • D. Grenville Dodge Memorial Bridge
    The Grenville Dodge Memorial Bridge is a major highway bridge in the Omaha–Council Bluffs area that carries Interstate 480 across the Missouri River between Nebraska and Iowa.
  • E. Macombs Dam Bridge
    Macombs Dam Bridge is a historic swing bridge in New York City that connects Manhattan and the Bronx across the Harlem River.
  • 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: Newkirk Viaduct
Triple: [Philadelphia, Wilmington and Baltimore Railroad, notableStructure, Newkirk Viaduct]
Generated description
The Newkirk Viaduct is a historic 19th-century railroad bridge in Philadelphia that played a key role in early rail travel along the Northeast Corridor.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Newkirk Viaduct
Target entity description: The Newkirk Viaduct is a historic 19th-century railroad bridge in Philadelphia that played a key role in early rail travel along the Northeast Corridor.
  • A. Bixby Creek Bridge
    Bixby Creek Bridge is an iconic reinforced-concrete arch bridge along California’s scenic Highway 1, renowned for its dramatic coastal setting and frequent appearance in photography and film.
  • B. Sagamore Bridge
    Sagamore Bridge is a major highway bridge in Massachusetts that carries traffic over the Cape Cod Canal, serving as one of the primary gateways to Cape Cod.
  • C. Strawberry Creek bridge
    Strawberry Creek bridge is a pedestrian bridge on the UC Berkeley campus that spans Strawberry Creek near Sather Gate, serving as a key walkway between central campus areas.
  • D. Grenville Dodge Memorial Bridge
    The Grenville Dodge Memorial Bridge is a major highway bridge in the Omaha–Council Bluffs area that carries Interstate 480 across the Missouri River between Nebraska and Iowa.
  • E. Macombs Dam Bridge
    Macombs Dam Bridge is a historic swing bridge in New York City that connects Manhattan and the Bronx across the Harlem River.
  • 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_69a2e848adf881908e5e04f7af030093 completed Feb. 28, 2026, 1:06 p.m.
NER Named-entity recognition batch_69a2f162f3888190b057ad04e40a30e2 completed Feb. 28, 2026, 1:45 p.m.
NED1 Entity disambiguation (via context triple) batch_69a6786f051481909474159c0e1f886c completed March 3, 2026, 5:58 a.m.
NEDg Description generation batch_69a67911f7348190a7e992ea1808e841 completed March 3, 2026, 6 a.m.
NED2 Entity disambiguation (via description) batch_69a6797c30208190acc24b71e3bce594 completed March 3, 2026, 6:02 a.m.
Created at: Feb. 28, 2026, 1:12 p.m.