Triple

T1274665
Position Surface form Disambiguated ID Type / Status
Subject Keystone Corridor E15785 entity
Predicate electrifiedSection P14045 FINISHED
Object Philadelphia–Harrisburg
Philadelphia–Harrisburg is the key intercity rail segment in Pennsylvania linking the state’s largest city with its capital along Amtrak’s Keystone Corridor.
 E182138 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: Philadelphia–Harrisburg | Statement: [Keystone Corridor, electrifiedSection, Philadelphia–Harrisburg]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Philadelphia–Harrisburg
Context triple: [Keystone Corridor, electrifiedSection, Philadelphia–Harrisburg]
  • A. Harrisburg, Pennsylvania
    Harrisburg, Pennsylvania is the capital city of the U.S. state of Pennsylvania, located along the Susquehanna River and known historically as a major transportation and industrial hub.
  • B. Washington, Pennsylvania
    Washington, Pennsylvania is a small city in southwestern Pennsylvania known for its historic role in the Whiskey Rebellion and as home to Washington & Jefferson College.
  • C. Norristown
    Norristown is a historic borough in Montgomery County, Pennsylvania, serving as a county seat and inner suburb within the greater Philadelphia metropolitan area.
  • D. Manheim
    Manheim is a leading automotive auction and remarketing company that provides wholesale vehicle marketplace services to dealers and commercial clients.
  • E. Scranton–Wilkes-Barre metropolitan area
    The Scranton–Wilkes-Barre metropolitan area is a northeastern Pennsylvania urban region centered around the cities of Scranton and Wilkes-Barre, known historically for coal mining and railroads and now a diversified economic and cultural hub.
  • 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: Philadelphia–Harrisburg
Triple: [Keystone Corridor, electrifiedSection, Philadelphia–Harrisburg]
Generated description
Philadelphia–Harrisburg is the key intercity rail segment in Pennsylvania linking the state’s largest city with its capital along Amtrak’s Keystone Corridor.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Philadelphia–Harrisburg
Target entity description: Philadelphia–Harrisburg is the key intercity rail segment in Pennsylvania linking the state’s largest city with its capital along Amtrak’s Keystone Corridor.
  • A. Harrisburg, Pennsylvania
    Harrisburg, Pennsylvania is the capital city of the U.S. state of Pennsylvania, located along the Susquehanna River and known historically as a major transportation and industrial hub.
  • B. Washington, Pennsylvania
    Washington, Pennsylvania is a small city in southwestern Pennsylvania known for its historic role in the Whiskey Rebellion and as home to Washington & Jefferson College.
  • C. Norristown
    Norristown is a historic borough in Montgomery County, Pennsylvania, serving as a county seat and inner suburb within the greater Philadelphia metropolitan area.
  • D. Manheim
    Manheim is a leading automotive auction and remarketing company that provides wholesale vehicle marketplace services to dealers and commercial clients.
  • E. Scranton–Wilkes-Barre metropolitan area
    The Scranton–Wilkes-Barre metropolitan area is a northeastern Pennsylvania urban region centered around the cities of Scranton and Wilkes-Barre, known historically for coal mining and railroads and now a diversified economic and cultural hub.
  • 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_69a4935a94308190bb92555b79032824 completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a4c06ee22081908141868b57596e35 completed March 1, 2026, 10:40 p.m.
NED1 Entity disambiguation (via context triple) batch_69ad51996dc08190afecb40095e3d3e2 completed March 8, 2026, 10:38 a.m.
NEDg Description generation batch_69ad521ac9a88190978b9ed3e3d14d98 completed March 8, 2026, 10:40 a.m.
NED2 Entity disambiguation (via description) batch_69ad52bfdbec81908f7240c46ce11888 completed March 8, 2026, 10:43 a.m.
Created at: March 1, 2026, 7:50 p.m.