Triple
T23132992
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Yotsuya Station |
E577227
|
entity |
| Predicate | openedByOperator |
P97989
|
FINISHED |
| Object | Japanese Government Railways |
—
|
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: Japanese Government Railways | Statement: [Yotsuya Station, openedByOperator, Japanese Government Railways]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Japanese Government Railways Context triple: [Yotsuya Station, openedByOperator, Japanese Government Railways]
-
A.
Japanese Government Railways
chosen
Japanese Government Railways was the state-operated railway system of Japan that managed and expanded the country’s rail network before its postwar reorganization into Japanese National Railways.
-
B.
Japanese National Railways
Japanese National Railways was Japan’s former state-owned railway company that operated the country’s nationwide rail network until its privatization and breakup in 1987.
-
C.
Railway Bureau of Japan
The Railway Bureau of Japan is a governmental body responsible for planning, regulating, and overseeing the nation’s railway systems and policies.
-
D.
Japan Railway Construction Public Corporation
Japan Railway Construction Public Corporation was a former Japanese government agency responsible for planning and constructing railway lines and related infrastructure.
-
E.
Japan Railways Group
Japan Railways Group is a major network of regional railway companies in Japan that emerged from the privatization of the former Japanese National Railways and operates much of the country’s passenger rail services, including high-speed Shinkansen lines.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: openedByOperator Context triple: [Yotsuya Station, openedByOperator, Japanese Government Railways]
-
A.
openingOperator
chosen
Indicates that an entity initiates or performs the action of opening another entity or resource.
-
B.
operatorAtOpening
Indicates that an operator is present and on duty at the time of an opening event.
-
C.
openedForUse
Indicates that something has been made accessible and available for its intended operation or use.
-
D.
openedForUseBy
Indicates that something has been made available or activated so that a particular entity can use it.
-
E.
openedForThroughService
Indicates that an entity has been made accessible or available specifically for use via a through-service connection or route, rather than as a standalone endpoint.
- F. None of above.
Provenance (3 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_69e245f7b0e481909c473ff4e6a54e2c |
completed | April 17, 2026, 2:38 p.m. |
| NER | Named-entity recognition | batch_69f18e89cce881908727a94dbc00e031 |
completed | April 29, 2026, 4:52 a.m. |
| PD | Predicate disambiguation | batch_69ef89f83b108190aaaa1db6221fc163 |
completed | April 27, 2026, 4:08 p.m. |
Created at: April 17, 2026, 4 p.m.