Triple

T7276219

Position	Surface form	Disambiguated ID	Type / Status
Subject	Tokyo Metro Yurakucho Line at Nagatacho	`E163035`	entity
Predicate	connectsWith	`P37`	FINISHED
Object	Tokyo Metro Namboku Line at Nagatacho Tokyo Metro Namboku Line at Nagatacho is an underground station on Tokyo’s north–south Namboku Line located in the Nagatacho district, providing convenient transfers to multiple other Tokyo Metro lines.	`E655508`	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 Namboku Line at Nagatacho | Statement: [Tokyo Metro Yurakucho Line at Nagatacho, connectsWith, Tokyo Metro Namboku Line at Nagatacho]

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

Target entity: Tokyo Metro Namboku Line at Nagatacho
Context triple: [Tokyo Metro Yurakucho Line at Nagatacho, connectsWith, Tokyo Metro Namboku Line at Nagatacho]

A. Tokyo Metro Hanzomon Line at Nagatacho
Tokyo Metro Hanzomon Line at Nagatacho is an underground subway line stop in central Tokyo that serves the Hanzomon Line and provides convenient transfers to multiple other Tokyo Metro lines.
B. Tokyo Metro Yurakucho Line at Nagatacho
Tokyo Metro Yurakucho Line at Nagatacho is a subway line stop in central Tokyo that serves the Nagatacho district and connects with multiple other Tokyo Metro lines for convenient transfers.
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. 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.
E. Tokyo Metro Chiyoda Line at Otemachi
Tokyo Metro Chiyoda Line at Otemachi is a subway line platform and service point within Otemachi Station in central Tokyo, providing urban rail transit and transfers to multiple other Tokyo Metro lines.
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 Namboku Line at Nagatacho
Triple: [Tokyo Metro Yurakucho Line at Nagatacho, connectsWith, Tokyo Metro Namboku Line at Nagatacho]

Generated description

Tokyo Metro Namboku Line at Nagatacho is an underground station on Tokyo’s north–south Namboku Line located in the Nagatacho district, providing convenient transfers to multiple other Tokyo Metro lines.

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

Target entity: Tokyo Metro Namboku Line at Nagatacho
Target entity description: Tokyo Metro Namboku Line at Nagatacho is an underground station on Tokyo’s north–south Namboku Line located in the Nagatacho district, providing convenient transfers to multiple other Tokyo Metro lines.

A. Tokyo Metro Hanzomon Line at Nagatacho
Tokyo Metro Hanzomon Line at Nagatacho is an underground subway line stop in central Tokyo that serves the Hanzomon Line and provides convenient transfers to multiple other Tokyo Metro lines.
B. Tokyo Metro Yurakucho Line at Nagatacho
Tokyo Metro Yurakucho Line at Nagatacho is a subway line stop in central Tokyo that serves the Nagatacho district and connects with multiple other Tokyo Metro lines for convenient transfers.
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. 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.
E. Tokyo Metro Chiyoda Line at Otemachi
Tokyo Metro Chiyoda Line at Otemachi is a subway line platform and service point within Otemachi Station in central Tokyo, providing urban rail transit and transfers to multiple other Tokyo Metro lines.
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_69c6885c5964819085b209701769877f`	completed	March 27, 2026, 1:38 p.m.
NER	Named-entity recognition	`batch_69c6eb2f239c819097c1ac4d6de8b0e5`	completed	March 27, 2026, 8:40 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69c7e52f96008190886f6115329a07ab`	completed	March 28, 2026, 2:26 p.m.
NEDg	Description generation	`batch_69c7e608d2a881909a7ffc39ccdc6359`	completed	March 28, 2026, 2:30 p.m.
NED2	Entity disambiguation (via description)	`batch_69c7e7814a58819093a35c035e9b982e`	completed	March 28, 2026, 2:36 p.m.

Created at: March 27, 2026, 2:59 p.m.