Triple

T3748870
Position Surface form Disambiguated ID Type / Status
Subject Harrisburg, Pennsylvania E81277 entity
Predicate riverCrossing P225 FINISHED
Object Walnut Street Bridge
The Walnut Street Bridge is a historic pedestrian bridge spanning the Susquehanna River in Harrisburg, Pennsylvania, known for its distinctive iron truss design and scenic city views.
 E383598 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: Walnut Street Bridge | Statement: [Harrisburg, Pennsylvania, riverCrossing, Walnut Street Bridge]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Walnut Street Bridge
Context triple: [Harrisburg, Pennsylvania, riverCrossing, Walnut Street Bridge]
  • A. Walnut Street Bridge
    Walnut Street Bridge is a historic pedestrian truss bridge in Chattanooga, Tennessee, known as one of the world’s longest pedestrian bridges and a prominent riverfront landmark.
  • B. Pearl Street Bridge
    Pearl Street Bridge is a historic vehicular and pedestrian bridge spanning the Grand River in downtown Grand Rapids, Michigan.
  • C. Wells Street Bridge
    Wells Street Bridge is a historic double-deck, double-leaf bascule bridge in downtown Chicago that carries both road traffic and elevated trains across the Chicago River.
  • D. Market Street Bridge (Harrisburg)
    The Market Street Bridge in Harrisburg is a historic multi-span bridge that carries Market Street across the Susquehanna River, linking downtown Harrisburg with the West Shore communities.
  • E. Benjamin Franklin Bridge
    The Benjamin Franklin Bridge is a major suspension bridge connecting Philadelphia, Pennsylvania, and Camden, New Jersey, serving as a key transportation link across the Delaware 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: Walnut Street Bridge
Triple: [Harrisburg, Pennsylvania, riverCrossing, Walnut Street Bridge]
Generated description
The Walnut Street Bridge is a historic pedestrian bridge spanning the Susquehanna River in Harrisburg, Pennsylvania, known for its distinctive iron truss design and scenic city views.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Walnut Street Bridge
Target entity description: The Walnut Street Bridge is a historic pedestrian bridge spanning the Susquehanna River in Harrisburg, Pennsylvania, known for its distinctive iron truss design and scenic city views.
  • A. Walnut Street Bridge
    Walnut Street Bridge is a historic pedestrian truss bridge in Chattanooga, Tennessee, known as one of the world’s longest pedestrian bridges and a prominent riverfront landmark.
  • B. Pearl Street Bridge
    Pearl Street Bridge is a historic vehicular and pedestrian bridge spanning the Grand River in downtown Grand Rapids, Michigan.
  • C. Wells Street Bridge
    Wells Street Bridge is a historic double-deck, double-leaf bascule bridge in downtown Chicago that carries both road traffic and elevated trains across the Chicago River.
  • D. Market Street Bridge (Harrisburg)
    The Market Street Bridge in Harrisburg is a historic multi-span bridge that carries Market Street across the Susquehanna River, linking downtown Harrisburg with the West Shore communities.
  • E. Benjamin Franklin Bridge
    The Benjamin Franklin Bridge is a major suspension bridge connecting Philadelphia, Pennsylvania, and Camden, New Jersey, serving as a key transportation link across the Delaware 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_69ad8b19b7b08190a6188804e99c53e9 completed March 8, 2026, 2:43 p.m.
NER Named-entity recognition batch_69adcb6bf95c81909796fbc84995ae05 completed March 8, 2026, 7:18 p.m.
NED1 Entity disambiguation (via context triple) batch_69b4db31f964819087bab143f638754f completed March 14, 2026, 3:51 a.m.
NEDg Description generation batch_69b4dbbc23f08190a03ef4e4197398a4 completed March 14, 2026, 3:53 a.m.
NED2 Entity disambiguation (via description) batch_69b4dcac6fdc81908998415ffe1aabaa completed March 14, 2026, 3:57 a.m.
Created at: March 8, 2026, 3:35 p.m.