Triple

T11227207
Position Surface form Disambiguated ID Type / Status
Subject Odenton E265725 entity
Predicate railroadOrigin P97933 FINISHED
Object Baltimore & Potomac Railroad
The Baltimore & Potomac Railroad was a 19th-century rail line that connected Baltimore to Washington, D.C., later becoming part of the Pennsylvania Railroad system.
E912853 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: Baltimore & Potomac Railroad | Statement: [Odenton, railroadOrigin, Baltimore & Potomac Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Baltimore & Potomac Railroad
Context triple: [Odenton, railroadOrigin, Baltimore & Potomac Railroad]
  • A. 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.
  • 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. 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.
  • D. Pennsylvania Railroad Company
    The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
  • E. Seaboard System Railroad
    Seaboard System Railroad was a major U.S. freight railroad of the 1980s that consolidated several southeastern carriers and later became part of CSX Transportation.
  • 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: Baltimore & Potomac Railroad
Triple: [Odenton, railroadOrigin, Baltimore & Potomac Railroad]
Generated description
The Baltimore & Potomac Railroad was a 19th-century rail line that connected Baltimore to Washington, D.C., later becoming part of the Pennsylvania Railroad system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Baltimore & Potomac Railroad
Target entity description: The Baltimore & Potomac Railroad was a 19th-century rail line that connected Baltimore to Washington, D.C., later becoming part of the Pennsylvania Railroad system.
  • A. 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.
  • 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. 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.
  • D. Pennsylvania Railroad Company
    The Pennsylvania Railroad Company was one of the largest and most influential American railroads of the 19th and early 20th centuries, playing a central role in the industrial development of the United States.
  • E. Seaboard System Railroad
    Seaboard System Railroad was a major U.S. freight railroad of the 1980s that consolidated several southeastern carriers and later became part of CSX Transportation.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: railroadOrigin
Context triple: [Odenton, railroadOrigin, Baltimore & Potomac Railroad]
  • A. originalRailroadName
    Indicates the name of the railroad as it was originally known or designated, before any later changes such as mergers, rebrandings, or renamings.
  • B. hasRailroadHistory
    Indicates that an entity is associated with, involved in, or notable for historical events, operations, or developments related to railroads.
  • C. formerRailroad
    Indicates that an entity was previously a railroad but no longer functions as one.
  • D. railroad
    Indicates that one entity constructs, operates, or provides railroad or train transportation services for another entity or area.
  • E. railwaySectorOrigin
    Indicates the place or source from which a railway sector, line, or system originates or begins.
  • F. None of above. chosen

Provenance (7 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_69d6aac656d48190b275efaa7d6074ee completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e8ff7b40819089c835be710bc575 completed April 9, 2026, 5:59 p.m.
NED1 Entity disambiguation (via context triple) batch_69e4ad33fdf48190a7118c7c30577ec9 completed April 19, 2026, 10:23 a.m.
NEDg Description generation batch_69e4b1ee74748190a33449ce1b92813e completed April 19, 2026, 10:43 a.m.
NED2 Entity disambiguation (via description) batch_69e4b3d23b18819096f3a11aecc732bd completed April 19, 2026, 10:52 a.m.
PD Predicate disambiguation batch_69d75cfbbb188190861efd5d94fe27da completed April 9, 2026, 8:02 a.m.
PDg Predicate description generation batch_69d77062271c8190b63da714ab5beff9 completed April 9, 2026, 9:24 a.m.
Created at: April 8, 2026, 9:30 p.m.