Triple

T9814721
Position Surface form Disambiguated ID Type / Status
Subject Akihabara Station E238372 entity
Predicate operatedBy P86 FINISHED
Object Metropolitan Intercity Railway Company
Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
E823556 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: Metropolitan Intercity Railway Company | Statement: [Akihabara Station, operatedBy, Metropolitan Intercity Railway Company]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Metropolitan Intercity Railway Company
Context triple: [Akihabara Station, operatedBy, Metropolitan Intercity Railway Company]
  • A. Central Suburban Passenger Company
    Central Suburban Passenger Company is a major Russian commuter rail operator serving the Moscow metropolitan area and surrounding regions.
  • B. New York, Westchester and Boston Railway
    The New York, Westchester and Boston Railway was an early 20th-century electric commuter railroad serving the Bronx and Westchester County, later partially incorporated into the New York City Subway system.
  • 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. New York Central Railroad
    New York Central Railroad was one of the largest and most influential American railroads, known for its extensive network in the northeastern United States and iconic passenger trains like the 20th Century Limited.
  • E. Canada Southern Railway
    Canada Southern Railway was a 19th- and early 20th-century railway company that operated a key east–west main line across southern Ontario, providing an important international link between the U.S. and Canada.
  • 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: Metropolitan Intercity Railway Company
Triple: [Akihabara Station, operatedBy, Metropolitan Intercity Railway Company]
Generated description
Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Metropolitan Intercity Railway Company
Target entity description: Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
  • A. Central Suburban Passenger Company
    Central Suburban Passenger Company is a major Russian commuter rail operator serving the Moscow metropolitan area and surrounding regions.
  • B. New York, Westchester and Boston Railway
    The New York, Westchester and Boston Railway was an early 20th-century electric commuter railroad serving the Bronx and Westchester County, later partially incorporated into the New York City Subway system.
  • 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. New York Central Railroad
    New York Central Railroad was one of the largest and most influential American railroads, known for its extensive network in the northeastern United States and iconic passenger trains like the 20th Century Limited.
  • E. Canada Southern Railway
    Canada Southern Railway was a 19th- and early 20th-century railway company that operated a key east–west main line across southern Ontario, providing an important international link between the U.S. and Canada.
  • 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_69ca84defac48190abc1148804f184c1 completed March 30, 2026, 2:12 p.m.
NER Named-entity recognition batch_69cdb2f19660819083e3f15780352052 completed April 2, 2026, 12:06 a.m.
NED1 Entity disambiguation (via context triple) batch_69d1cc67db68819093217c9a74e72fbf completed April 5, 2026, 2:43 a.m.
NEDg Description generation batch_69d1ccf59c68819082b4aa37e06d2aaf completed April 5, 2026, 2:46 a.m.
NED2 Entity disambiguation (via description) batch_69d1d0d945d48190b56b7fd2ce568a13 completed April 5, 2026, 3:02 a.m.
Created at: March 30, 2026, 8:30 p.m.