Triple
T11052855
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyo Metro Yurakuchō Line |
E261298
|
entity |
| Predicate | namedAfter |
P63
|
FINISHED |
| Object |
Yūrakuchō district
Yūrakuchō district is a central Tokyo neighborhood known for its theaters, dining, and entertainment venues near the Ginza and Marunouchi areas.
|
E524616
|
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: Yūrakuchō district | Statement: [Tokyo Metro Yurakuchō Line, namedAfter, Yūrakuchō district]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Yūrakuchō district Context triple: [Tokyo Metro Yurakuchō Line, namedAfter, Yūrakuchō district]
-
A.
Aoyama district
Aoyama district is an upscale neighborhood in central Tokyo known for its fashionable boutiques, trendy cafes, art galleries, and modern architecture.
-
B.
Tamagawa district
Tamagawa district is a residential neighborhood in Setagaya, Tokyo, known for its riverside location along the Tama River and relatively tranquil urban atmosphere.
-
C.
Hibiya district
Hibiya district is a central Tokyo area known for its business centers, government buildings, and the historic Hibiya Park near the Imperial Palace.
-
D.
Higashi-Nippori district
Higashi-Nippori is a residential and commercial neighborhood in Tokyo known for its traditional shitamachi atmosphere and proximity to major transport hubs like Nippori Station.
-
E.
Ichigaya district
Ichigaya district is a central Tokyo neighborhood known for its government and military institutions, educational facilities, and proximity to the Imperial Palace area.
- 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: Yūrakuchō district Triple: [Tokyo Metro Yurakuchō Line, namedAfter, Yūrakuchō district]
Generated description
Yūrakuchō district is a central Tokyo neighborhood known for its theaters, dining, and entertainment venues near the Ginza and Marunouchi areas.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Yūrakuchō district Target entity description: Yūrakuchō district is a central Tokyo neighborhood known for its theaters, dining, and entertainment venues near the Ginza and Marunouchi areas.
-
A.
Aoyama district
Aoyama district is an upscale neighborhood in central Tokyo known for its fashionable boutiques, trendy cafes, art galleries, and modern architecture.
-
B.
Tamagawa district
Tamagawa district is a residential neighborhood in Setagaya, Tokyo, known for its riverside location along the Tama River and relatively tranquil urban atmosphere.
-
C.
Hibiya district
chosen
Hibiya district is a central Tokyo area known for its business centers, government buildings, and the historic Hibiya Park near the Imperial Palace.
-
D.
Higashi-Nippori district
Higashi-Nippori is a residential and commercial neighborhood in Tokyo known for its traditional shitamachi atmosphere and proximity to major transport hubs like Nippori Station.
-
E.
Ichigaya district
Ichigaya district is a central Tokyo neighborhood known for its government and military institutions, educational facilities, and proximity to the Imperial Palace area.
- F. None of above.
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_69d6aa98650481908609c7c56bfa7902 |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d7986c0df88190b29d71db5538450a |
completed | April 9, 2026, 12:15 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f7304bc684819083ca999f283b0cb3 |
completed | May 3, 2026, 11:23 a.m. |
| NEDg | Description generation | batch_69f7316101e48190b3ec59a4376a0562 |
completed | May 3, 2026, 11:28 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69f731f8e98c8190becfad8e3a371484 |
completed | May 3, 2026, 11:31 a.m. |
Created at: April 8, 2026, 9:26 p.m.