Triple

T508756
Position Surface form Disambiguated ID Type / Status
Subject Philadelphia, Wilmington and Baltimore Railroad E10558 entity
Predicate formedFromMergerOf P6637 FINISHED
Object Delaware and Maryland Railroad
The Delaware and Maryland Railroad was a 19th-century regional rail line that operated in the Mid-Atlantic United States before becoming part of the Philadelphia, Wilmington and Baltimore Railroad through consolidation.
E10558 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: Delaware and Maryland Railroad | Statement: [Philadelphia, Wilmington and Baltimore Railroad, formedFromMergerOf, Delaware and Maryland Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Delaware and Maryland Railroad
Context triple: [Philadelphia, Wilmington and Baltimore Railroad, formedFromMergerOf, Delaware and Maryland Railroad]
  • A. Philadelphia, Wilmington and Baltimore Railroad
    The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
  • B. Baltimore and Susquehanna Railroad
    The Baltimore and Susquehanna Railroad was an early 19th-century American railroad that helped pioneer rail transportation in Maryland and Pennsylvania, eventually becoming part of the Northern Central Railway system.
  • C. Baltimore and Ohio Railroad
    The Baltimore and Ohio Railroad was one of the earliest and most influential American railroads, playing a key role in the development of U.S. transportation and commerce in the 19th and early 20th centuries.
  • D. Western Maryland Railway
    Western Maryland Railway was a historic regional railroad that operated primarily in Maryland, Pennsylvania, and West Virginia, known for hauling coal and freight through the Appalachian region before being absorbed into larger rail systems.
  • E. Wilmington/Newark Line
    The Wilmington/Newark Line is a commuter rail service in the SEPTA Regional Rail system that connects Philadelphia with Wilmington and Newark in Delaware.
  • 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: Delaware and Maryland Railroad
Triple: [Philadelphia, Wilmington and Baltimore Railroad, formedFromMergerOf, Delaware and Maryland Railroad]
Generated description
The Delaware and Maryland Railroad was a 19th-century regional rail line that operated in the Mid-Atlantic United States before becoming part of the Philadelphia, Wilmington and Baltimore Railroad through consolidation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Delaware and Maryland Railroad
Target entity description: The Delaware and Maryland Railroad was a 19th-century regional rail line that operated in the Mid-Atlantic United States before becoming part of the Philadelphia, Wilmington and Baltimore Railroad through consolidation.
  • A. Philadelphia, Wilmington and Baltimore Railroad chosen
    The Philadelphia, Wilmington and Baltimore Railroad was a 19th-century rail line that formed a key segment of the main corridor linking the northeastern United States, particularly connecting Philadelphia with points south.
  • B. Baltimore and Susquehanna Railroad
    The Baltimore and Susquehanna Railroad was an early 19th-century American railroad that helped pioneer rail transportation in Maryland and Pennsylvania, eventually becoming part of the Northern Central Railway system.
  • C. Baltimore and Ohio Railroad
    The Baltimore and Ohio Railroad was one of the earliest and most influential American railroads, playing a key role in the development of U.S. transportation and commerce in the 19th and early 20th centuries.
  • D. Western Maryland Railway
    Western Maryland Railway was a historic regional railroad that operated primarily in Maryland, Pennsylvania, and West Virginia, known for hauling coal and freight through the Appalachian region before being absorbed into larger rail systems.
  • E. Wilmington/Newark Line
    The Wilmington/Newark Line is a commuter rail service in the SEPTA Regional Rail system that connects Philadelphia with Wilmington and Newark in Delaware.
  • F. None of above.

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_69a2e848adf881908e5e04f7af030093 completed Feb. 28, 2026, 1:06 p.m.
NER Named-entity recognition batch_69a2f162f3888190b057ad04e40a30e2 completed Feb. 28, 2026, 1:45 p.m.
NED1 Entity disambiguation (via context triple) batch_69a4b5d3b5f0819093c5d55bdf5a7c4d completed March 1, 2026, 9:55 p.m.
NEDg Description generation batch_69a4b673f5dc8190a70b7ddcf76ec016 completed March 1, 2026, 9:58 p.m.
NED2 Entity disambiguation (via description) batch_69a4b79ec4b48190b992f642aa7cddb7 completed March 1, 2026, 10:03 p.m.
Created at: Feb. 28, 2026, 1:12 p.m.