Triple

T3110257
Position Surface form Disambiguated ID Type / Status
Subject Atlantic Coast Line Railroad E64932 entity
Predicate predecessor P97 FINISHED
Object 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.
E328796 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: Richmond and Petersburg Railroad | Statement: [Atlantic Coast Line Railroad, predecessor, Richmond and Petersburg Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Richmond and Petersburg Railroad
Context triple: [Atlantic Coast Line Railroad, predecessor, Richmond and Petersburg Railroad]
  • A. Alexandria, Loudoun and Hampshire Railroad
    The Alexandria, Loudoun and Hampshire Railroad was a 19th-century Virginia railway line that played a strategic role during the American Civil War, including in early engagements such as the Battle of Vienna.
  • B. Richmond, Fredericksburg and Potomac Railroad
    The Richmond, Fredericksburg and Potomac Railroad was a historic rail line in Virginia that served as a key north–south transportation corridor linking Washington, D.C. with Richmond and points south.
  • 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. Virginian Railway
    The Virginian Railway was an early 20th-century American coal-hauling railroad that operated primarily in West Virginia and Virginia, renowned for its efficient, heavy-duty freight operations and later incorporation into the Norfolk and Western Railway.
  • E. Washington and Old Dominion Railroad
    The Washington and Old Dominion Railroad was a regional rail line in Northern Virginia that operated from the 19th to the mid-20th century, later converted into the popular Washington & Old Dominion Railroad Trail.
  • 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: Richmond and Petersburg Railroad
Triple: [Atlantic Coast Line Railroad, predecessor, Richmond and Petersburg Railroad]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Richmond and Petersburg Railroad
Target entity description: 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.
  • A. Alexandria, Loudoun and Hampshire Railroad
    The Alexandria, Loudoun and Hampshire Railroad was a 19th-century Virginia railway line that played a strategic role during the American Civil War, including in early engagements such as the Battle of Vienna.
  • B. Richmond, Fredericksburg and Potomac Railroad
    The Richmond, Fredericksburg and Potomac Railroad was a historic rail line in Virginia that served as a key north–south transportation corridor linking Washington, D.C. with Richmond and points south.
  • 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. Virginian Railway
    The Virginian Railway was an early 20th-century American coal-hauling railroad that operated primarily in West Virginia and Virginia, renowned for its efficient, heavy-duty freight operations and later incorporation into the Norfolk and Western Railway.
  • E. Washington and Old Dominion Railroad
    The Washington and Old Dominion Railroad was a regional rail line in Northern Virginia that operated from the 19th to the mid-20th century, later converted into the popular Washington & Old Dominion Railroad Trail.
  • 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_69ad857eeaf48190b34ebfdaa7a264cf completed March 8, 2026, 2:19 p.m.
NER Named-entity recognition batch_69ada437c5e08190af22f6fa11cf9252 completed March 8, 2026, 4:30 p.m.
NED1 Entity disambiguation (via context triple) batch_69b20f5cfc7c8190b867794c0e9a271e completed March 12, 2026, 12:57 a.m.
NEDg Description generation batch_69b2101824c0819097dc967d83d18751 completed March 12, 2026, 1 a.m.
NED2 Entity disambiguation (via description) batch_69b210886d308190b120beb8f6bcbf3a completed March 12, 2026, 1:02 a.m.
Created at: March 8, 2026, 3:04 p.m.