Triple

T14733540
Position Surface form Disambiguated ID Type / Status
Subject JR East Nambu Line E346140 entity
Predicate connectsWith P37 FINISHED
Object Seibu Tamagawa Line (via Musashi-Sakai branch connection area)
The Seibu Tamagawa Line (via Musashi-Sakai branch connection area) is a short suburban railway line in western Tokyo operated by Seibu Railway, linking residential neighborhoods to major interchange points on the JR East network.
 E1116819 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: Seibu Tamagawa Line (via Musashi-Sakai branch connection area) | Statement: [JR East Nambu Line, connectsWith, Seibu Tamagawa Line (via Musashi-Sakai branch connection area)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Seibu Tamagawa Line (via Musashi-Sakai branch connection area)
Context triple: [JR East Nambu Line, connectsWith, Seibu Tamagawa Line (via Musashi-Sakai branch connection area)]
  • A. Seibu Tamako Line
    The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
  • B. Seibu Toshima Line
    The Seibu Toshima Line is a short commuter railway line in Tokyo, Japan, operated by Seibu Railway and connecting Nerima and Toshimaen in the city’s northwest.
  • C. Seibu Kokubunji Line
    The Seibu Kokubunji Line is a commuter railway line in western Tokyo operated by Seibu Railway, connecting residential suburbs with major transit hubs.
  • D. Seibu Ikebukuro Line
    The Seibu Ikebukuro Line is a major private railway line in the Tokyo area operated by Seibu Railway, connecting Ikebukuro in central Tokyo with suburban destinations in Saitama Prefecture.
  • E. Tōkyū Tamagawa Line
    The Tōkyū Tamagawa Line is a commuter railway line in Tokyo operated by Tokyu Corporation, connecting residential areas in Ōta Ward with major hubs on the city’s rail network.
  • 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: Seibu Tamagawa Line (via Musashi-Sakai branch connection area)
Triple: [JR East Nambu Line, connectsWith, Seibu Tamagawa Line (via Musashi-Sakai branch connection area)]
Generated description
The Seibu Tamagawa Line (via Musashi-Sakai branch connection area) is a short suburban railway line in western Tokyo operated by Seibu Railway, linking residential neighborhoods to major interchange points on the JR East network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Seibu Tamagawa Line (via Musashi-Sakai branch connection area)
Target entity description: The Seibu Tamagawa Line (via Musashi-Sakai branch connection area) is a short suburban railway line in western Tokyo operated by Seibu Railway, linking residential neighborhoods to major interchange points on the JR East network.
  • A. Seibu Tamako Line
    The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
  • B. Seibu Toshima Line
    The Seibu Toshima Line is a short commuter railway line in Tokyo, Japan, operated by Seibu Railway and connecting Nerima and Toshimaen in the city’s northwest.
  • C. Seibu Kokubunji Line
    The Seibu Kokubunji Line is a commuter railway line in western Tokyo operated by Seibu Railway, connecting residential suburbs with major transit hubs.
  • D. Seibu Ikebukuro Line
    The Seibu Ikebukuro Line is a major private railway line in the Tokyo area operated by Seibu Railway, connecting Ikebukuro in central Tokyo with suburban destinations in Saitama Prefecture.
  • E. Tōkyū Tamagawa Line
    The Tōkyū Tamagawa Line is a commuter railway line in Tokyo operated by Tokyu Corporation, connecting residential areas in Ōta Ward with major hubs on the city’s rail network.
  • 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_69d822e5911c8190ba589f957dbd9ba7 completed April 9, 2026, 10:06 p.m.
NER Named-entity recognition batch_69dec72ea9348190817efcdaa973d7f7 completed April 14, 2026, 11:01 p.m.
NED1 Entity disambiguation (via context triple) batch_69fdfb8bcc188190901e3f692fd8fbf9 completed May 8, 2026, 3:04 p.m.
NEDg Description generation batch_69fdfe396bb48190ade10c757a3a7e5e completed May 8, 2026, 3:16 p.m.
NED2 Entity disambiguation (via description) batch_69fdfeb5d08081908ff0fdbc489fc985 completed May 8, 2026, 3:18 p.m.
Created at: April 10, 2026, 1:29 a.m.