Triple

T4561742
Position Surface form Disambiguated ID Type / Status
Subject Transportation Act of 1920 E121805 entity
Predicate includedTitle P3254 FINISHED
Object Title I – Return of Railroads to Private Control
Title I – Return of Railroads to Private Control was a section of the Transportation Act of 1920 that set the terms and procedures for ending federal control of U.S. railroads after World War I and restoring them to private ownership and operation.
E452584 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: Title I – Return of Railroads to Private Control | Statement: [Transportation Act of 1920, includedTitle, Title I – Return of Railroads to Private Control]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Title I – Return of Railroads to Private Control
Context triple: [Transportation Act of 1920, includedTitle, Title I – Return of Railroads to Private Control]
  • A. Hepburn Act regulation of railroads
    The Hepburn Act regulation of railroads was a landmark 1906 U.S. law that greatly strengthened federal oversight of railroad rates and practices by expanding the powers of the Interstate Commerce Commission.
  • B. Railroad Revitalization and Regulatory Reform Act
    The Railroad Revitalization and Regulatory Reform Act is a 1976 U.S. federal law that restructured and deregulated the railroad industry to restore its financial stability and improve freight rail service.
  • C. First Rail
    First Rail is the rail division of FirstGroup, operating passenger train services and related rail transport operations in the United Kingdom.
  • D. Amtrak Reform and Accountability Act of 1997
    The Amtrak Reform and Accountability Act of 1997 is a U.S. federal law that restructured Amtrak’s operations and finances, aiming to improve its efficiency and move it toward greater financial self-sufficiency.
  • E. Rail Passenger Service Act of 1970
    The Rail Passenger Service Act of 1970 is the U.S. federal law that created Amtrak (the National Railroad Passenger Corporation) to preserve and manage intercity passenger rail service.
  • 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: Title I – Return of Railroads to Private Control
Triple: [Transportation Act of 1920, includedTitle, Title I – Return of Railroads to Private Control]
Generated description
Title I – Return of Railroads to Private Control was a section of the Transportation Act of 1920 that set the terms and procedures for ending federal control of U.S. railroads after World War I and restoring them to private ownership and operation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Title I – Return of Railroads to Private Control
Target entity description: Title I – Return of Railroads to Private Control was a section of the Transportation Act of 1920 that set the terms and procedures for ending federal control of U.S. railroads after World War I and restoring them to private ownership and operation.
  • A. Hepburn Act regulation of railroads
    The Hepburn Act regulation of railroads was a landmark 1906 U.S. law that greatly strengthened federal oversight of railroad rates and practices by expanding the powers of the Interstate Commerce Commission.
  • B. Railroad Revitalization and Regulatory Reform Act
    The Railroad Revitalization and Regulatory Reform Act is a 1976 U.S. federal law that restructured and deregulated the railroad industry to restore its financial stability and improve freight rail service.
  • C. First Rail
    First Rail is the rail division of FirstGroup, operating passenger train services and related rail transport operations in the United Kingdom.
  • D. Amtrak Reform and Accountability Act of 1997
    The Amtrak Reform and Accountability Act of 1997 is a U.S. federal law that restructured Amtrak’s operations and finances, aiming to improve its efficiency and move it toward greater financial self-sufficiency.
  • E. Rail Passenger Service Act of 1970
    The Rail Passenger Service Act of 1970 is the U.S. federal law that created Amtrak (the National Railroad Passenger Corporation) to preserve and manage intercity passenger rail service.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: includedTitle
Context triple: [Transportation Act of 1920, includedTitle, Title I – Return of Railroads to Private Control]
  • A. containsTitle chosen
    Indicates that one entity includes or holds another entity’s title as part of its content or metadata.
  • B. usesTitle
    Indicates that one entity refers to or addresses another entity using a specific title or formal designation.
  • C. providedTitle
    Indicates that one entity has supplied or assigned a specific title or designation to another entity.
  • D. associatedTitle
    Indicates that one entity has a title, designation, or formal label that is linked or relevant to another entity.
  • E. involvesTitle
    Indicates that the relationship or action includes or makes reference to a specific title (such as a role, honorific, or formal designation).
  • 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_69bd463f156881908a99aca69c5721ac completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd582f21648190b49284eb61b618c9 completed March 20, 2026, 2:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69bdc59b2514819091f3845307cb1c8b completed March 20, 2026, 10:09 p.m.
NEDg Description generation batch_69bdc66a981c8190a472722af45ce023 completed March 20, 2026, 10:12 p.m.
NED2 Entity disambiguation (via description) batch_69bdc6de076081909d2ad276cc7a1141 completed March 20, 2026, 10:14 p.m.
PD Predicate disambiguation batch_69bd52254c648190a5144cfe8fa7e409 completed March 20, 2026, 1:56 p.m.
Created at: March 20, 2026, 1:09 p.m.