Triple
T17856020
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fukuchiyama Line |
E445937
|
entity |
| Predicate | ownerBeforeJNRPrivatization |
P69957
|
FINISHED |
| Object | Japanese National 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 National Railways | Statement: [Fukuchiyama Line, ownerBeforeJNRPrivatization, Japanese National Railways]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Japanese National Railways Context triple: [Fukuchiyama Line, ownerBeforeJNRPrivatization, Japanese National Railways]
-
A.
Japanese National Railways
chosen
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.
-
B.
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.
-
C.
East Japan Railway Company
East Japan Railway Company is a major Japanese railway operator that runs an extensive network of commuter and high-speed train services across eastern Honshu, including the Tokyo metropolitan area.
-
D.
Japanese Government Railways
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.
-
E.
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.
- 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: ownerBeforeJNRPrivatization Context triple: [Fukuchiyama Line, ownerBeforeJNRPrivatization, Japanese National Railways]
-
A.
ownerBeforeJNRBreakup
chosen
Indicates that one entity was the owner of another entity prior to the breakup of the Japanese National Railways (JNR).
-
B.
statusBeforeNationalization
Indicates the condition or classification an entity had prior to being nationalized.
-
C.
privatizedOn
Indicates the date or point in time when an entity transitioned from public or state ownership/control to private ownership/control.
-
D.
formerPartOwnerOf
Indicates that an entity previously held, but no longer holds, a partial ownership stake in another entity.
-
E.
region after nationalisation
Indicates that a region is characterized or defined by its status or condition following a process of nationalisation.
- 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_69d8b9f26f18819089c9e43250bee6ae |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e4978bd5e081909e192f6aada5235f |
completed | April 19, 2026, 8:51 a.m. |
| PD | Predicate disambiguation | batch_69e3d8e6d2e88190ad9ef9f8a99f13e6 |
completed | April 18, 2026, 7:17 p.m. |
Created at: April 10, 2026, 10:17 a.m.