Triple
T7161788
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyo Metro Tozai Line at Otemachi |
E166963
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object |
Otemachi Station
Otemachi Station is a major Tokyo railway hub where multiple Tokyo Metro lines intersect, serving as a key access point to the city’s central business district near Tokyo Station.
|
E692574
|
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: Otemachi Station | Statement: [Tokyo Metro Tozai Line at Otemachi, partOf, Otemachi Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Otemachi Station Context triple: [Tokyo Metro Tozai Line at Otemachi, partOf, Otemachi Station]
-
A.
Kyobashi Station
Kyobashi Station is a major railway hub in Osaka, Japan, serving multiple JR West, Keihan, and Osaka Metro lines and connecting central Osaka with surrounding areas.
-
B.
Akasaka Station
Akasaka Station is a Tokyo Metro subway station in Tokyo’s Minato ward, serving as a key stop on the Chiyoda Line in a major business and entertainment district.
-
C.
Yurakucho Station
Yurakucho Station is a major railway hub in central Tokyo’s Chiyoda ward, serving multiple JR and subway lines and providing convenient access to the Ginza and Marunouchi districts.
-
D.
Nihonbashi Station
Nihonbashi Station is a major underground railway and subway interchange in central Tokyo, serving multiple Tokyo Metro and Toei lines near the historic Nihonbashi district.
-
E.
Shibuya Station
Shibuya Station is one of Tokyo’s busiest and most important railway hubs, serving multiple train and subway lines and anchoring the famous Shibuya shopping and entertainment district.
- 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: Otemachi Station Triple: [Tokyo Metro Tozai Line at Otemachi, partOf, Otemachi Station]
Generated description
Otemachi Station is a major Tokyo railway hub where multiple Tokyo Metro lines intersect, serving as a key access point to the city’s central business district near Tokyo Station.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Otemachi Station Target entity description: Otemachi Station is a major Tokyo railway hub where multiple Tokyo Metro lines intersect, serving as a key access point to the city’s central business district near Tokyo Station.
-
A.
Kyobashi Station
Kyobashi Station is a major railway hub in Osaka, Japan, serving multiple JR West, Keihan, and Osaka Metro lines and connecting central Osaka with surrounding areas.
-
B.
Akasaka Station
Akasaka Station is a Tokyo Metro subway station in Tokyo’s Minato ward, serving as a key stop on the Chiyoda Line in a major business and entertainment district.
-
C.
Yurakucho Station
Yurakucho Station is a major railway hub in central Tokyo’s Chiyoda ward, serving multiple JR and subway lines and providing convenient access to the Ginza and Marunouchi districts.
-
D.
Nihonbashi Station
Nihonbashi Station is a major underground railway and subway interchange in central Tokyo, serving multiple Tokyo Metro and Toei lines near the historic Nihonbashi district.
-
E.
Shibuya Station
Shibuya Station is one of Tokyo’s busiest and most important railway hubs, serving multiple train and subway lines and anchoring the famous Shibuya shopping and entertainment district.
- 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_69c68887a5cc8190bec0ea96227164f7 |
completed | March 27, 2026, 1:39 p.m. |
| NER | Named-entity recognition | batch_69c6e82e4b248190ad3c3863cb93971e |
completed | March 27, 2026, 8:27 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ca621ce1b881908ed8145e0088ea3f |
completed | March 30, 2026, 11:44 a.m. |
| NEDg | Description generation | batch_69ca629206f48190bc29ffda7c8865ee |
completed | March 30, 2026, 11:46 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ca62e497288190adfe0181ea194af4 |
completed | March 30, 2026, 11:47 a.m. |
Created at: March 27, 2026, 2:47 p.m.