Triple
T10945558
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyo Metro Namboku Line |
E258586
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Roppongi-itchome Station
Roppongi-itchome Station is an underground Tokyo Metro station in Tokyo’s Roppongi district, serving commuters and visitors in a major business and nightlife area.
|
E669549
|
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: Roppongi-itchome Station | Statement: [Tokyo Metro Namboku Line, hasStation, Roppongi-itchome Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Roppongi-itchome Station Context triple: [Tokyo Metro Namboku Line, hasStation, Roppongi-itchome Station]
-
A.
Roppongi Station
Roppongi Station is a major Tokyo subway station in the Roppongi district, serving as a key access point to the area’s nightlife, business centers, and cultural attractions.
-
B.
Shinjuku-sanchome Station
Shinjuku-sanchome Station is a major underground railway station in Tokyo’s Shinjuku district that serves multiple Tokyo Metro lines and provides convenient access to shopping, entertainment, and business areas.
-
C.
Nakameguro Station
Nakameguro Station is a major railway station in Tokyo’s Meguro ward that serves as an important transit hub and gateway to the trendy Nakameguro neighborhood.
-
D.
Shirokane-takanawa Station
Shirokane-takanawa Station is a subway station in Minato, Tokyo, jointly operated by Tokyo Metro and Toei Subway, serving as an interchange between the Namboku and Mita lines.
-
E.
Omotesando Station
Omotesando Station is a major Tokyo subway hub in the fashionable Omotesandō district, serving multiple lines and providing access to upscale shopping and cultural attractions.
- 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: Roppongi-itchome Station Triple: [Tokyo Metro Namboku Line, hasStation, Roppongi-itchome Station]
Generated description
Roppongi-itchome Station is an underground Tokyo Metro station in Tokyo’s Roppongi district, serving commuters and visitors in a major business and nightlife area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Roppongi-itchome Station Target entity description: Roppongi-itchome Station is an underground Tokyo Metro station in Tokyo’s Roppongi district, serving commuters and visitors in a major business and nightlife area.
-
A.
Roppongi Station
chosen
Roppongi Station is a major Tokyo subway station in the Roppongi district, serving as a key access point to the area’s nightlife, business centers, and cultural attractions.
-
B.
Shinjuku-sanchome Station
Shinjuku-sanchome Station is a major underground railway station in Tokyo’s Shinjuku district that serves multiple Tokyo Metro lines and provides convenient access to shopping, entertainment, and business areas.
-
C.
Nakameguro Station
Nakameguro Station is a major railway station in Tokyo’s Meguro ward that serves as an important transit hub and gateway to the trendy Nakameguro neighborhood.
-
D.
Shirokane-takanawa Station
Shirokane-takanawa Station is a subway station in Minato, Tokyo, jointly operated by Tokyo Metro and Toei Subway, serving as an interchange between the Namboku and Mita lines.
-
E.
Omotesando Station
Omotesando Station is a major Tokyo subway hub in the fashionable Omotesandō district, serving multiple lines and providing access to upscale shopping and cultural attractions.
- 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_69d6aa8769b4819082bfe5e61b9017f0 |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d770e9a89081908979efd1d9e6af66 |
completed | April 9, 2026, 9:27 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffbe5eeba08190849171d079745d1a |
completed | May 9, 2026, 11:08 p.m. |
| NEDg | Description generation | batch_69ffbf70d6488190944986503882678d |
completed | May 9, 2026, 11:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ffc08179488190a8f434121bede859 |
completed | May 9, 2026, 11:17 p.m. |
Created at: April 8, 2026, 9:23 p.m.