Triple

T4059611
Position Surface form Disambiguated ID Type / Status
Subject Southern Railway (U.S.) E84776 entity
Predicate notableTrain P1669 FINISHED
Object Piedmont Limited
The Piedmont Limited was a prominent Southern Railway passenger train that provided long-distance service in the southeastern United States during the early to mid-20th century.
E410896 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: Piedmont Limited | Statement: [Southern Railway (U.S.), notableTrain, Piedmont Limited]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Piedmont Limited
Context triple: [Southern Railway (U.S.), notableTrain, Piedmont Limited]
  • A. Sunset Limited
    Sunset Limited is a long-distance Amtrak passenger train route that runs across the southern United States, historically connecting the Gulf Coast to the West Coast.
  • B. Northesk
    Northesk is the territorial designation associated with the Scottish peerage title Earl of Northesk, historically linked to the Carnegie family.
  • C. Murray & Roberts
    Murray & Roberts is a major South African engineering and construction group known for delivering large, complex infrastructure and building projects worldwide.
  • D. Potowmack Company
    The Potowmack Company was an 18th-century enterprise, championed by George Washington, that sought to improve navigation on the Potomac River to link the Atlantic seaboard with the western frontier.
  • E. Mount Company
    Mount Company is a film production company best known for producing the 1988 baseball romantic comedy "Bull Durham."
  • 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: Piedmont Limited
Triple: [Southern Railway (U.S.), notableTrain, Piedmont Limited]
Generated description
The Piedmont Limited was a prominent Southern Railway passenger train that provided long-distance service in the southeastern United States during the early to mid-20th century.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Piedmont Limited
Target entity description: The Piedmont Limited was a prominent Southern Railway passenger train that provided long-distance service in the southeastern United States during the early to mid-20th century.
  • A. Sunset Limited
    Sunset Limited is a long-distance Amtrak passenger train route that runs across the southern United States, historically connecting the Gulf Coast to the West Coast.
  • B. Northesk
    Northesk is the territorial designation associated with the Scottish peerage title Earl of Northesk, historically linked to the Carnegie family.
  • C. Murray & Roberts
    Murray & Roberts is a major South African engineering and construction group known for delivering large, complex infrastructure and building projects worldwide.
  • D. Potowmack Company
    The Potowmack Company was an 18th-century enterprise, championed by George Washington, that sought to improve navigation on the Potomac River to link the Atlantic seaboard with the western frontier.
  • E. Mount Company
    Mount Company is a film production company best known for producing the 1988 baseball romantic comedy "Bull Durham."
  • 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_69aed933bec881909edfa28ebb69c634 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aefbd32c0c8190bc575974ccf831b3 completed March 9, 2026, 4:56 p.m.
NED1 Entity disambiguation (via context triple) batch_69b562a98c488190a7e77cd46ff998bc completed March 14, 2026, 1:29 p.m.
NEDg Description generation batch_69b5637cd5b881909a930ecb33eed991 completed March 14, 2026, 1:32 p.m.
NED2 Entity disambiguation (via description) batch_69b564603b4881909e80970aa21e3db4 completed March 14, 2026, 1:36 p.m.
Created at: March 9, 2026, 3:38 p.m.