Triple
T20272141
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Osaka Metro 70 series |
E499118
|
entity |
| Predicate | designedBy |
P184
|
FINISHED |
| Object | Osaka Municipal Transportation Bureau engineering division |
—
|
NE NERFINISHED |
How this triple was built (3 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: Osaka Municipal Transportation Bureau engineering division | Statement: [Osaka Metro 70 series, designedBy, Osaka Municipal Transportation Bureau engineering division]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Osaka Municipal Transportation Bureau engineering division Context triple: [Osaka Metro 70 series, designedBy, Osaka Municipal Transportation Bureau engineering division]
-
A.
Osaka Port Transport System
Osaka Port Transport System is a public transportation operator in Osaka, Japan, responsible for managing and running transit services in the city's port and bay area.
-
B.
Osaka Monorail Co., Ltd.
Osaka Monorail Co., Ltd. is the railway company that operates the Osaka Monorail transit system in Osaka Prefecture, Japan.
-
C.
Nagoya City Transportation Bureau
The Nagoya City Transportation Bureau is the municipal authority responsible for operating Nagoya’s public transit network, including its subway and bus systems.
-
D.
国土交通省近畿地方整備局
国土交通省近畿地方整備局は、近畿地方の河川・道路・港湾などの社会資本整備や維持管理、防災対策を担う国土交通省の地方支分部局です。
-
E.
Yokohama City Transportation Bureau
The Yokohama City Transportation Bureau is the municipal agency responsible for operating Yokohama’s public transit systems, including subways and buses.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Osaka Municipal Transportation Bureau engineering division Target entity description: The Osaka Municipal Transportation Bureau engineering division is the in-house technical arm of Osaka’s public transit authority responsible for designing and developing rolling stock and related railway systems.
-
A.
Osaka Port Transport System
Osaka Port Transport System is a public transportation operator in Osaka, Japan, responsible for managing and running transit services in the city's port and bay area.
-
B.
Osaka Monorail Co., Ltd.
Osaka Monorail Co., Ltd. is the railway company that operates the Osaka Monorail transit system in Osaka Prefecture, Japan.
-
C.
Nagoya City Transportation Bureau
The Nagoya City Transportation Bureau is the municipal authority responsible for operating Nagoya’s public transit network, including its subway and bus systems.
-
D.
国土交通省近畿地方整備局
国土交通省近畿地方整備局は、近畿地方の河川・道路・港湾などの社会資本整備や維持管理、防災対策を担う国土交通省の地方支分部局です。
-
E.
Yokohama City Transportation Bureau
The Yokohama City Transportation Bureau is the municipal agency responsible for operating Yokohama’s public transit systems, including subways and buses.
- F. None of above. chosen
Provenance (2 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_69da6275fa6c8190952924930adee150 |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e675de35188190840dc7d04c1d5fd9 |
completed | April 20, 2026, 6:52 p.m. |
Created at: April 11, 2026, 11:42 p.m.