Triple
T11161503
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyo Metro Marunouchi Line |
E264046
|
entity |
| Predicate | depot |
P14646
|
FINISHED |
| Object |
Koishikawa Depot
Koishikawa Depot is a major Tokyo Metro rail yard and maintenance facility serving trains on the Marunouchi Line in Tokyo, Japan.
|
E997068
|
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: Koishikawa Depot | Statement: [Tokyo Metro Marunouchi Line, depot, Koishikawa Depot]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Koishikawa Depot Context triple: [Tokyo Metro Marunouchi Line, depot, Koishikawa Depot]
-
A.
Ueno Depot
Ueno Depot is a Tokyo Metro facility that services and stores trains operating on the Ginza Line in Tokyo, Japan.
-
B.
Jiyugaoka Station
Jiyugaoka Station is a major railway station in Tokyo’s Meguro Ward known for serving as a key hub on multiple Tokyu lines and providing access to the fashionable Jiyugaoka shopping and café district.
-
C.
Taisho Station
Taisho Station is a railway and subway station in Osaka, Japan, serving as a key access point to the nearby Kyocera Dome Osaka stadium.
-
D.
Shinkiba Depot
Shinkiba Depot is a Tokyo Metro rail facility in the Shinkiba area used for the storage, inspection, and maintenance of Yurakuchō Line trains.
-
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: Koishikawa Depot Triple: [Tokyo Metro Marunouchi Line, depot, Koishikawa Depot]
Generated description
Koishikawa Depot is a major Tokyo Metro rail yard and maintenance facility serving trains on the Marunouchi Line in Tokyo, Japan.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Koishikawa Depot Target entity description: Koishikawa Depot is a major Tokyo Metro rail yard and maintenance facility serving trains on the Marunouchi Line in Tokyo, Japan.
-
A.
Ueno Depot
Ueno Depot is a Tokyo Metro facility that services and stores trains operating on the Ginza Line in Tokyo, Japan.
-
B.
Jiyugaoka Station
Jiyugaoka Station is a major railway station in Tokyo’s Meguro Ward known for serving as a key hub on multiple Tokyu lines and providing access to the fashionable Jiyugaoka shopping and café district.
-
C.
Taisho Station
Taisho Station is a railway and subway station in Osaka, Japan, serving as a key access point to the nearby Kyocera Dome Osaka stadium.
-
D.
Shinkiba Depot
Shinkiba Depot is a Tokyo Metro rail facility in the Shinkiba area used for the storage, inspection, and maintenance of Yurakuchō Line trains.
-
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
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_69d6aa9ccddc8190868998c8b7beb060 |
completed | April 8, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69d7e8817a90819087820d5241c58851 |
completed | April 9, 2026, 5:57 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f671788ec88190852df74698bc4518 |
completed | May 2, 2026, 9:49 p.m. |
| NEDg | Description generation | batch_69f67285019c8190be831d3f72cf121f |
completed | May 2, 2026, 9:54 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f67323a724819092425cdb3a070b96 |
completed | May 2, 2026, 9:56 p.m. |
Created at: April 8, 2026, 9:29 p.m.