Triple

T4944552
Position Surface form Disambiguated ID Type / Status
Subject Baltimore Transit Company E111015 entity
Predicate owner P347 FINISHED
Object National City Lines
National City Lines was a U.S. holding company that acquired and operated numerous local transit systems, often associated with the mid-20th-century shift from streetcars to buses.
E481181 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: National City Lines | Statement: [Baltimore Transit Company, owner, National City Lines]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: National City Lines
Context triple: [Baltimore Transit Company, owner, National City Lines]
  • A. Reading Company commuter service
    Reading Company commuter service was the network of suburban passenger rail operations once run by the Reading Company in the Philadelphia region before being succeeded by lines such as the West Trenton Line.
  • B. Central Suburban Passenger Company
    Central Suburban Passenger Company is a major Russian commuter rail operator serving the Moscow metropolitan area and surrounding regions.
  • C. Manhattan Railway Company
    The Manhattan Railway Company was a major transit operator in New York City that ran the elevated train lines in Manhattan before the development of the city’s subway system.
  • D. Trinity Railway Express
    Trinity Railway Express is a commuter rail service connecting Dallas and Fort Worth, Texas, providing regional passenger transportation across the Dallas–Fort Worth metroplex.
  • E. City Line
    City Line is a residential neighborhood in eastern Brooklyn, New York City, located near the borough’s border with Queens.
  • 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: National City Lines
Triple: [Baltimore Transit Company, owner, National City Lines]
Generated description
National City Lines was a U.S. holding company that acquired and operated numerous local transit systems, often associated with the mid-20th-century shift from streetcars to buses.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: National City Lines
Target entity description: National City Lines was a U.S. holding company that acquired and operated numerous local transit systems, often associated with the mid-20th-century shift from streetcars to buses.
  • A. Reading Company commuter service
    Reading Company commuter service was the network of suburban passenger rail operations once run by the Reading Company in the Philadelphia region before being succeeded by lines such as the West Trenton Line.
  • B. Central Suburban Passenger Company
    Central Suburban Passenger Company is a major Russian commuter rail operator serving the Moscow metropolitan area and surrounding regions.
  • C. Manhattan Railway Company
    The Manhattan Railway Company was a major transit operator in New York City that ran the elevated train lines in Manhattan before the development of the city’s subway system.
  • D. Trinity Railway Express
    Trinity Railway Express is a commuter rail service connecting Dallas and Fort Worth, Texas, providing regional passenger transportation across the Dallas–Fort Worth metroplex.
  • E. City Line
    City Line is a residential neighborhood in eastern Brooklyn, New York City, located near the borough’s border with Queens.
  • 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_69bd441721cc819085c7e33fe0876818 completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd70a8e5388190882831d7828441d3 completed March 20, 2026, 4:07 p.m.
NED1 Entity disambiguation (via context triple) batch_69be77c6566c8190b0c76c05b9d82053 completed March 21, 2026, 10:49 a.m.
NEDg Description generation batch_69be78ac2d888190b53d90452431263f completed March 21, 2026, 10:53 a.m.
NED2 Entity disambiguation (via description) batch_69be79a6634c8190bae1fa09eedd6829 completed March 21, 2026, 10:57 a.m.
Created at: March 20, 2026, 1:31 p.m.