Triple
T10624064
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nishi Ward, Yokohama |
E250275
|
entity |
| Predicate | servedByRailway |
P848
|
FINISHED |
| Object |
Yokohama Municipal Subway
Yokohama Municipal Subway is an urban rapid transit system in Yokohama, Japan, operating multiple underground lines that connect key districts and suburbs across the city.
|
E1057851
|
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: Yokohama Municipal Subway | Statement: [Nishi Ward, Yokohama, servedByRailway, Yokohama Municipal Subway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Yokohama Municipal Subway Context triple: [Nishi Ward, Yokohama, servedByRailway, Yokohama Municipal Subway]
-
A.
Yokohama Minatomirai Railway Minatomirai Line
The Yokohama Minatomirai Railway Minatomirai Line is a commuter rail line in Yokohama, Japan, connecting central Yokohama with the Minato Mirai waterfront district and providing through services to the wider Tokyo rail network.
-
B.
Tokyu Shin-Yokohama Line
The Tokyu Shin-Yokohama Line is a commuter railway line in the Greater Tokyo area that connects Tokyu Corporation’s network with the Shinkansen hub at Shin-Yokohama, improving through-services and regional accessibility.
-
C.
Tokyo Metro Namboku Line
The Tokyo Metro Namboku Line is a north–south subway line in Tokyo operated by Tokyo Metro, known for its deep underground stations and through-services to other railway lines.
-
D.
Nagoya Municipal Subway
Nagoya Municipal Subway is the rapid transit system serving the city of Nagoya, Japan, forming the core of its urban public transportation network.
-
E.
Tokyo Metro Tozai Line
The Tokyo Metro Tozai Line is a major east–west subway line in Tokyo that connects central business districts with residential suburbs and offers through-services onto several private railway 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: Yokohama Municipal Subway Triple: [Nishi Ward, Yokohama, servedByRailway, Yokohama Municipal Subway]
Generated description
Yokohama Municipal Subway is an urban rapid transit system in Yokohama, Japan, operating multiple underground lines that connect key districts and suburbs across the city.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Yokohama Municipal Subway Target entity description: Yokohama Municipal Subway is an urban rapid transit system in Yokohama, Japan, operating multiple underground lines that connect key districts and suburbs across the city.
-
A.
Yokohama Minatomirai Railway Minatomirai Line
The Yokohama Minatomirai Railway Minatomirai Line is a commuter rail line in Yokohama, Japan, connecting central Yokohama with the Minato Mirai waterfront district and providing through services to the wider Tokyo rail network.
-
B.
Tokyu Shin-Yokohama Line
The Tokyu Shin-Yokohama Line is a commuter railway line in the Greater Tokyo area that connects Tokyu Corporation’s network with the Shinkansen hub at Shin-Yokohama, improving through-services and regional accessibility.
-
C.
Tokyo Metro Namboku Line
The Tokyo Metro Namboku Line is a north–south subway line in Tokyo operated by Tokyo Metro, known for its deep underground stations and through-services to other railway lines.
-
D.
Nagoya Municipal Subway
Nagoya Municipal Subway is the rapid transit system serving the city of Nagoya, Japan, forming the core of its urban public transportation network.
-
E.
Tokyo Metro Tozai Line
The Tokyo Metro Tozai Line is a major east–west subway line in Tokyo that connects central business districts with residential suburbs and offers through-services onto several private railway 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_69d6aa5993448190a493b790b8f85010 |
completed | April 8, 2026, 7:19 p.m. |
| NER | Named-entity recognition | batch_69d6df7f11fc8190aed858f2e1443c08 |
completed | April 8, 2026, 11:06 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f79d2da6b48190bdd974fa9520bc87 |
completed | May 3, 2026, 7:08 p.m. |
| NEDg | Description generation | batch_69f7a18eb038819089fcbf961a94cb0c |
completed | May 3, 2026, 7:27 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69f7a2234390819093814fd435f9c42c |
completed | May 3, 2026, 7:29 p.m. |
Created at: April 8, 2026, 8:52 p.m.