Triple

T9814744
Position Surface form Disambiguated ID Type / Status
Subject Akihabara Station E238372 entity
Predicate adjacentStationOnLine P41425 FINISHED
Object Ochanomizu Station on Sōbu Line (Rapid)
Ochanomizu Station on the Sōbu Line (Rapid) is a major JR East railway station in central Tokyo that serves as a key transfer point between the Chūō and Sōbu Line services near the Kanda River and several university districts.
 E823559 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: Ochanomizu Station on Sōbu Line (Rapid) | Statement: [Akihabara Station, adjacentStationOnLine, Ochanomizu Station on Sōbu Line (Rapid)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Ochanomizu Station on Sōbu Line (Rapid)
Context triple: [Akihabara Station, adjacentStationOnLine, Ochanomizu Station on Sōbu Line (Rapid)]
  • A. Mejiro Station on Yamanote Line
    Mejiro Station on the Yamanote Line is a small, relatively quiet JR East railway station in Tokyo’s Toshima ward, situated between the major hubs of Ikebukuro and Takadanobaba.
  • B. Jimbocho Station on Toei Shinjuku Line
    Jimbocho Station on the Toei Shinjuku Line is an underground subway station in Tokyo’s Chiyoda ward, serving the Jimbocho district and providing transfers to multiple Tokyo Metro and Toei lines.
  • C. Omiya Station
    Omiya Station is a major railway hub in Saitama, Japan, serving numerous JR East lines and Shinkansen routes and functioning as a key gateway between Tokyo and northern Japan.
  • D. JR Saikyo Line (at Ikebukuro Station)
    The JR Saikyo Line at Ikebukuro Station is a major JR East commuter rail line in Tokyo that provides rapid north–south access through the city and connects with multiple private and subway lines.
  • E. Utsunomiya Station
    Utsunomiya Station is a major railway hub in Utsunomiya, Tochigi Prefecture, Japan, served by multiple JR East lines and Shinkansen services.
  • 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: Ochanomizu Station on Sōbu Line (Rapid)
Triple: [Akihabara Station, adjacentStationOnLine, Ochanomizu Station on Sōbu Line (Rapid)]
Generated description
Ochanomizu Station on the Sōbu Line (Rapid) is a major JR East railway station in central Tokyo that serves as a key transfer point between the Chūō and Sōbu Line services near the Kanda River and several university districts.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Ochanomizu Station on Sōbu Line (Rapid)
Target entity description: Ochanomizu Station on the Sōbu Line (Rapid) is a major JR East railway station in central Tokyo that serves as a key transfer point between the Chūō and Sōbu Line services near the Kanda River and several university districts.
  • A. Mejiro Station on Yamanote Line
    Mejiro Station on the Yamanote Line is a small, relatively quiet JR East railway station in Tokyo’s Toshima ward, situated between the major hubs of Ikebukuro and Takadanobaba.
  • B. Jimbocho Station on Toei Shinjuku Line
    Jimbocho Station on the Toei Shinjuku Line is an underground subway station in Tokyo’s Chiyoda ward, serving the Jimbocho district and providing transfers to multiple Tokyo Metro and Toei lines.
  • C. Omiya Station
    Omiya Station is a major railway hub in Saitama, Japan, serving numerous JR East lines and Shinkansen routes and functioning as a key gateway between Tokyo and northern Japan.
  • D. JR Saikyo Line (at Ikebukuro Station)
    The JR Saikyo Line at Ikebukuro Station is a major JR East commuter rail line in Tokyo that provides rapid north–south access through the city and connects with multiple private and subway lines.
  • E. Utsunomiya Station
    Utsunomiya Station is a major railway hub in Utsunomiya, Tochigi Prefecture, Japan, served by multiple JR East lines and Shinkansen services.
  • 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.