Triple

T6871224

Position	Surface form	Disambiguated ID	Type / Status
Subject	Tokyo Metro Tozai Line at Nihonbashi	`E158549`	entity
Predicate	adjacentTo	`P224`	FINISHED
Object	Tokyo Metro Tozai Line station at Kayabacho Tokyo Metro Tozai Line station at Kayabacho is an underground subway station in central Tokyo serving the Tozai Line and providing access to the Kayabacho business district.	`E625415`	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: Tokyo Metro Tozai Line station at Kayabacho | Statement: [Tokyo Metro Tozai Line at Nihonbashi, adjacentTo, Tokyo Metro Tozai Line station at Kayabacho]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Tokyo Metro Tozai Line station at Kayabacho
Context triple: [Tokyo Metro Tozai Line at Nihonbashi, adjacentTo, Tokyo Metro Tozai Line station at Kayabacho]

A. Tokyo Metro Hibiya Line at Kayabacho
Tokyo Metro Hibiya Line at Kayabacho is a busy Tokyo subway line stop in the Nihonbashi business district, providing key access to central commercial and financial areas.
B. Tokyo Metro Ginza Line at Kanda Station
Tokyo Metro Ginza Line at Kanda Station is the Ginza Line subway stop in Tokyo’s Kanda district, providing underground metro service and transfers to JR railway lines.
C. Tokyo Metro Tozai Line at Kudanshita
Tokyo Metro Tozai Line at Kudanshita is a subway station stop on Tokyo’s busy east–west Tozai Line, serving the Kudanshita area near central government offices, universities, and the Nippon Budokan.
D. 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.
E. Keio Inokashira Line at Kichijōji Station
The Keio Inokashira Line at Kichijōji Station is a major suburban railway terminus in western Tokyo that connects the popular Kichijōji area with Shibuya and other key neighborhoods.
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: Tokyo Metro Tozai Line station at Kayabacho
Triple: [Tokyo Metro Tozai Line at Nihonbashi, adjacentTo, Tokyo Metro Tozai Line station at Kayabacho]

Generated description

Tokyo Metro Tozai Line station at Kayabacho is an underground subway station in central Tokyo serving the Tozai Line and providing access to the Kayabacho business district.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Tokyo Metro Tozai Line station at Kayabacho
Target entity description: Tokyo Metro Tozai Line station at Kayabacho is an underground subway station in central Tokyo serving the Tozai Line and providing access to the Kayabacho business district.

A. Tokyo Metro Hibiya Line at Kayabacho
Tokyo Metro Hibiya Line at Kayabacho is a busy Tokyo subway line stop in the Nihonbashi business district, providing key access to central commercial and financial areas.
B. Tokyo Metro Ginza Line at Kanda Station
Tokyo Metro Ginza Line at Kanda Station is the Ginza Line subway stop in Tokyo’s Kanda district, providing underground metro service and transfers to JR railway lines.
C. Tokyo Metro Tozai Line at Kudanshita
Tokyo Metro Tozai Line at Kudanshita is a subway station stop on Tokyo’s busy east–west Tozai Line, serving the Kudanshita area near central government offices, universities, and the Nippon Budokan.
D. 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.
E. Keio Inokashira Line at Kichijōji Station
The Keio Inokashira Line at Kichijōji Station is a major suburban railway terminus in western Tokyo that connects the popular Kichijōji area with Shibuya and other key neighborhoods.
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_69c68831e3648190a643c328122e4d43`	completed	March 27, 2026, 1:37 p.m.
NER	Named-entity recognition	`batch_69c6d8ac04e08190aa8011c0ade9d509`	completed	March 27, 2026, 7:21 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69c742a841548190abd706ea1efd622f`	completed	March 28, 2026, 2:53 a.m.
NEDg	Description generation	`batch_69c743a639f88190a0758194433322bf`	completed	March 28, 2026, 2:57 a.m.
NED2	Entity disambiguation (via description)	`batch_69c7445fbd488190938ec3dd59cbeb2c`	completed	March 28, 2026, 3 a.m.

Created at: March 27, 2026, 2:22 p.m.