Triple

T271142
Position Surface form Disambiguated ID Type / Status
Subject Silver Meteor E5634 entity
Predicate operatorSuccessorTo P5677 FINISHED
Object Seaboard Coast Line Railroad
Seaboard Coast Line Railroad was a major Class I railroad in the southeastern United States, formed in 1967 and known for both freight operations and prominent passenger services before becoming part of CSX Transportation.
E36199 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: Seaboard Coast Line Railroad | Statement: [Silver Meteor, operatorSuccessorTo, Seaboard Coast Line Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Seaboard Coast Line Railroad
Context triple: [Silver Meteor, operatorSuccessorTo, Seaboard Coast Line Railroad]
  • A. Seaboard Air Line Railroad
    Seaboard Air Line Railroad was a major American railroad that operated in the southeastern United States, known for its prominent passenger services and streamlined trains.
  • B. Western and Atlantic Railroad
    The Western and Atlantic Railroad was a 19th-century U.S. rail line in Georgia that played a crucial role in the development of Atlanta as a major transportation hub.
  • C. Norfolk Southern Railway
    Norfolk Southern Railway is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • D. 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.
  • E. 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.
  • 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: Seaboard Coast Line Railroad
Triple: [Silver Meteor, operatorSuccessorTo, Seaboard Coast Line Railroad]
Generated description
Seaboard Coast Line Railroad was a major Class I railroad in the southeastern United States, formed in 1967 and known for both freight operations and prominent passenger services before becoming part of CSX Transportation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Seaboard Coast Line Railroad
Target entity description: Seaboard Coast Line Railroad was a major Class I railroad in the southeastern United States, formed in 1967 and known for both freight operations and prominent passenger services before becoming part of CSX Transportation.
  • A. Seaboard Air Line Railroad
    Seaboard Air Line Railroad was a major American railroad that operated in the southeastern United States, known for its prominent passenger services and streamlined trains.
  • B. Western and Atlantic Railroad
    The Western and Atlantic Railroad was a 19th-century U.S. rail line in Georgia that played a crucial role in the development of Atlanta as a major transportation hub.
  • C. Norfolk Southern Railway
    Norfolk Southern Railway is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • D. 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.
  • E. 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.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: operatorSuccessorTo
Context triple: [Silver Meteor, operatorSuccessorTo, Seaboard Coast Line Railroad]
  • A. successorOperator chosen
    Indicates that one operator directly follows another in a defined sequence or ordering.
  • B. successorInCommand
    Indicates that one entity is designated to assume command authority immediately after another entity, typically when the latter is unavailable or their term ends.
  • C. successorProtocol
    Indicates that one protocol directly follows and replaces another in sequence or versioning.
  • D. successor
    Indicates that one entity directly follows another in an ordered sequence or position.
  • E. successorState
    Indicates that one state directly follows another as the immediate next state in a sequence or process.
  • 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_69a25853594c8190b05ec3a586ec88bf completed Feb. 28, 2026, 2:52 a.m.
NER Named-entity recognition batch_69a25e69a9248190b9e7959b43223baa completed Feb. 28, 2026, 3:18 a.m.
NED1 Entity disambiguation (via context triple) batch_69a3949fbdd48190847ef6d7decdc61e completed March 1, 2026, 1:21 a.m.
NEDg Description generation batch_69a394ffe7148190a782a1943a76dc00 completed March 1, 2026, 1:23 a.m.
NED2 Entity disambiguation (via description) batch_69a3959061908190a96c6f8c8db0157d completed March 1, 2026, 1:25 a.m.
PD Predicate disambiguation batch_69a25b721180819080d43c43fcbccf87 completed Feb. 28, 2026, 3:05 a.m.
Created at: Feb. 28, 2026, 2:57 a.m.