Triple

T6537749

Position	Surface form	Disambiguated ID	Type / Status
Subject	Toei Shinjuku Line at Kudanshita	`E168207`	entity
Predicate	connectsWith	`P37`	FINISHED
Object	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.	`E606715`	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 at Kudanshita | Statement: [Toei Shinjuku Line at Kudanshita, connectsWith, Tokyo Metro Tozai Line at Kudanshita]

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

Target entity: Tokyo Metro Tozai Line at Kudanshita
Context triple: [Toei Shinjuku Line at Kudanshita, connectsWith, Tokyo Metro Tozai Line at Kudanshita]

A. Tokyo Metro Tozai Line at Nihonbashi
Tokyo Metro Tozai Line at Nihonbashi is a key underground railway line stop in central Tokyo that serves the Nihonbashi business district and connects with multiple other subway lines for convenient citywide access.
B. Tokyo Metro Tozai Line at Otemachi
Tokyo Metro Tozai Line at Otemachi is a major Tokyo subway line stop located in the Otemachi business district, serving as a key transfer point within the city’s extensive metro network.
C. 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.
D. Toei Shinjuku Line at Kudanshita
The Toei Shinjuku Line at Kudanshita is a station on Tokyo’s Toei Shinjuku subway line that serves as a key transfer point in central Tokyo.
E. Tokyo Metro Chiyoda Line at Omotesando
The Tokyo Metro Chiyoda Line at Omotesando is a major subway line stop in central Tokyo that serves the fashionable Omotesando district and connects with other key metro routes.
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 at Kudanshita
Triple: [Toei Shinjuku Line at Kudanshita, connectsWith, Tokyo Metro Tozai Line at Kudanshita]

Generated description

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.

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

Target entity: Tokyo Metro Tozai Line at Kudanshita
Target entity description: 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.

A. Tokyo Metro Tozai Line at Nihonbashi
Tokyo Metro Tozai Line at Nihonbashi is a key underground railway line stop in central Tokyo that serves the Nihonbashi business district and connects with multiple other subway lines for convenient citywide access.
B. Tokyo Metro Tozai Line at Otemachi
Tokyo Metro Tozai Line at Otemachi is a major Tokyo subway line stop located in the Otemachi business district, serving as a key transfer point within the city’s extensive metro network.
C. 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.
D. Toei Shinjuku Line at Kudanshita
The Toei Shinjuku Line at Kudanshita is a station on Tokyo’s Toei Shinjuku subway line that serves as a key transfer point in central Tokyo.
E. Tokyo Metro Chiyoda Line at Omotesando
The Tokyo Metro Chiyoda Line at Omotesando is a major subway line stop in central Tokyo that serves the fashionable Omotesando district and connects with other key metro routes.
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_69c68a51564081909e93aee0dbd9cca3`	completed	March 27, 2026, 1:46 p.m.
NER	Named-entity recognition	`batch_69c6add33acc8190bb0a9531648198f2`	completed	March 27, 2026, 4:18 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69c6e41b0a8881908aebef421a6d403c`	completed	March 27, 2026, 8:10 p.m.
NEDg	Description generation	`batch_69c6e57d71ec8190b79615f11eadec26`	completed	March 27, 2026, 8:15 p.m.
NED2	Entity disambiguation (via description)	`batch_69c6e614f04c8190b25b553553895799`	completed	March 27, 2026, 8:18 p.m.

Created at: March 27, 2026, 1:49 p.m.