Triple

T14219767
Position Surface form Disambiguated ID Type / Status
Subject Akiruno E352457 entity
Predicate hasRailwayService P782 FINISHED
Object JR East Itsukaichi Line
The JR East Itsukaichi Line is a regional railway line in western Tokyo operated by East Japan Railway Company, connecting suburban communities such as Akiruno with the broader Tokyo rail network.
E1488980 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: JR East Itsukaichi Line | Statement: [Akiruno, hasRailwayService, JR East Itsukaichi Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: JR East Itsukaichi Line
Context triple: [Akiruno, hasRailwayService, JR East Itsukaichi Line]
  • A. JR East Keiyō Line
    The JR East Keiyō Line is a railway line in the Tokyo–Chiba area of Japan that runs along the Tokyo Bay waterfront, linking central Tokyo with destinations such as Maihama (Tokyo Disney Resort) and Chiba.
  • B. JR East Ōme Line
    The JR East Ōme Line is a railway line in western Tokyo operated by East Japan Railway Company, connecting urban areas with the Tama region and the foothills of the Okutama area.
  • C. JR Katamachi Line
    The JR Katamachi Line, also known as the Gakkentoshi Line, is a commuter rail line in the Osaka–Kyoto region of Japan operated by JR West that connects central Osaka with suburban cities including Hirakata.
  • D. JR Saikyo Line
    The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
  • E. JR East Joban Line
    The JR East Joban Line is a major railway line in Japan operated by East Japan Railway Company, running between central Tokyo and the Tohoku region along the Pacific coast.
  • 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: JR East Itsukaichi Line
Triple: [Akiruno, hasRailwayService, JR East Itsukaichi Line]
Generated description
The JR East Itsukaichi Line is a regional railway line in western Tokyo operated by East Japan Railway Company, connecting suburban communities such as Akiruno with the broader Tokyo rail network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: JR East Itsukaichi Line
Target entity description: The JR East Itsukaichi Line is a regional railway line in western Tokyo operated by East Japan Railway Company, connecting suburban communities such as Akiruno with the broader Tokyo rail network.
  • A. JR East Keiyō Line
    The JR East Keiyō Line is a railway line in the Tokyo–Chiba area of Japan that runs along the Tokyo Bay waterfront, linking central Tokyo with destinations such as Maihama (Tokyo Disney Resort) and Chiba.
  • B. JR East Ōme Line
    The JR East Ōme Line is a railway line in western Tokyo operated by East Japan Railway Company, connecting urban areas with the Tama region and the foothills of the Okutama area.
  • C. JR Katamachi Line
    The JR Katamachi Line, also known as the Gakkentoshi Line, is a commuter rail line in the Osaka–Kyoto region of Japan operated by JR West that connects central Osaka with suburban cities including Hirakata.
  • D. JR Saikyo Line
    The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
  • E. JR East Joban Line
    The JR East Joban Line is a major railway line in Japan operated by East Japan Railway Company, running between central Tokyo and the Tohoku region along the Pacific coast.
  • 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_69d8278a06e481908b5d6af0a8afe737 completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69de621258d4819085f358cd2cf109e4 completed April 14, 2026, 3:49 p.m.
NED1 Entity disambiguation (via context triple) batch_6a09e80b29f08190949c8bb718c1787a completed May 17, 2026, 4:08 p.m.
NEDg Description generation batch_6a09e8f8eb4481909ffd1566e8525314 completed May 17, 2026, 4:12 p.m.
NED2 Entity disambiguation (via description) batch_6a09e97bce4c8190bc9eb4cec0afe061 completed May 17, 2026, 4:14 p.m.
Created at: April 10, 2026, 1:06 a.m.