Triple

T9939918
Position Surface form Disambiguated ID Type / Status
Subject Battle of the Weldon Railroad E194051 entity
Predicate railroadInvolved P76977 FINISHED
Object Petersburg and Weldon Railroad
The Petersburg and Weldon Railroad was a key Confederate rail line in Virginia that served as a vital supply route to Petersburg and Richmond during the American Civil War.
E831425 NE FINISHED

How this triple was built (5 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: Petersburg and Weldon Railroad | Statement: [Battle of the Weldon Railroad, railroadInvolved, Petersburg and Weldon Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Petersburg and Weldon Railroad
Context triple: [Battle of the Weldon Railroad, railroadInvolved, Petersburg and Weldon Railroad]
  • A. Wilmington and Weldon Railroad
    The Wilmington and Weldon Railroad was a 19th-century North Carolina rail line that became a key component of the later Atlantic Coast Line system and was once among the longest railroads in the world.
  • B. Richmond and Petersburg Railroad
    The Richmond and Petersburg Railroad was a 19th-century rail line in Virginia that played a key role in connecting Richmond to southern routes and later became part of larger systems like the Atlantic Coast Line Railroad.
  • C. Virginia Central Railroad
    The Virginia Central Railroad was a 19th-century Virginia railway that played a key role in regional transportation and Civil War logistics before becoming a principal predecessor of the Chesapeake and Ohio Railway.
  • D. Orange and Alexandria Railroad
    The Orange and Alexandria Railroad was a key 19th-century Virginia rail line that played a significant strategic role during the American Civil War, particularly in campaigns around northern and central Virginia.
  • E. Wilmington and Western Railroad
    The Wilmington and Western Railroad is a historic heritage railway in northern Delaware that operates scenic tourist excursions through the Red Clay Creek valley.
  • 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: Petersburg and Weldon Railroad
Triple: [Battle of the Weldon Railroad, railroadInvolved, Petersburg and Weldon Railroad]
Generated description
The Petersburg and Weldon Railroad was a key Confederate rail line in Virginia that served as a vital supply route to Petersburg and Richmond during the American Civil War.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Petersburg and Weldon Railroad
Target entity description: The Petersburg and Weldon Railroad was a key Confederate rail line in Virginia that served as a vital supply route to Petersburg and Richmond during the American Civil War.
  • A. Wilmington and Weldon Railroad
    The Wilmington and Weldon Railroad was a 19th-century North Carolina rail line that became a key component of the later Atlantic Coast Line system and was once among the longest railroads in the world.
  • B. Richmond and Petersburg Railroad
    The Richmond and Petersburg Railroad was a 19th-century rail line in Virginia that played a key role in connecting Richmond to southern routes and later became part of larger systems like the Atlantic Coast Line Railroad.
  • C. Virginia Central Railroad
    The Virginia Central Railroad was a 19th-century Virginia railway that played a key role in regional transportation and Civil War logistics before becoming a principal predecessor of the Chesapeake and Ohio Railway.
  • D. Orange and Alexandria Railroad
    The Orange and Alexandria Railroad was a key 19th-century Virginia rail line that played a significant strategic role during the American Civil War, particularly in campaigns around northern and central Virginia.
  • E. Wilmington and Western Railroad
    The Wilmington and Western Railroad is a historic heritage railway in northern Delaware that operates scenic tourist excursions through the Red Clay Creek valley.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: railroadInvolved
Context triple: [Battle of the Weldon Railroad, railroadInvolved, Petersburg and Weldon Railroad]
  • A. railroad
    Indicates that one entity constructs, operates, or provides railroad or train transportation services for another entity or area.
  • B. numberOfTrainsInvolved
    Indicates the count of trains that are involved in a particular event, situation, or incident.
  • C. railroadMet
    Indicates that two or more railroads encountered or connected with each other at a specific place or time.
  • D. relatedRailroad chosen
    Indicates that there is an association or connection between an entity and a specific railroad, such as ownership, operation, service, or historical linkage.
  • E. usesRailInfrastructureOf
    Indicates that one entity operates on, accesses, or otherwise makes use of the rail infrastructure owned or managed by another entity.
  • F. None of above.

Provenance (6 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_69ca82e409348190a393777356b80a2a completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cdb5e819e08190967b799fd236749e completed April 2, 2026, 12:18 a.m.
NED1 Entity disambiguation (via context triple) batch_69d228fdb8e48190808702d48470395a completed April 5, 2026, 9:18 a.m.
NEDg Description generation batch_69d22a2831348190909b9507edfe49f3 completed April 5, 2026, 9:23 a.m.
NED2 Entity disambiguation (via description) batch_69d22af8914c8190a8116a37a42b633c completed April 5, 2026, 9:27 a.m.
PD Predicate disambiguation batch_69cd1d9428cc81909b4b4938566d78a7 completed April 1, 2026, 1:28 p.m.
Created at: March 30, 2026, 8:44 p.m.