Triple
T19357532
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Izumi City |
E484187
|
entity |
| Predicate | railwayOperatorInCity |
P45263
|
FINISHED |
| Object | Semboku Rapid Railway Co., Ltd. |
—
|
NE NERFINISHED |
How this triple was built (2 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: Semboku Rapid Railway Co., Ltd. | Statement: [Izumi City, railwayOperatorInCity, Semboku Rapid Railway Co., Ltd.]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Semboku Rapid Railway Co., Ltd. Context triple: [Izumi City, railwayOperatorInCity, Semboku Rapid Railway Co., Ltd.]
-
A.
Semboku Rapid Railway
chosen
Semboku Rapid Railway is a Japanese railway company operating a suburban commuter line in Osaka Prefecture that connects residential areas such as Izumi City with central Osaka.
-
B.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
-
C.
Shinano Railway
Shinano Railway is a regional Japanese railway company operating local passenger train services primarily within Nagano Prefecture.
-
D.
Keifuku Electric Railroad
Keifuku Electric Railroad is a Japanese private railway company in Kyoto best known for operating the Randen tram lines that serve popular sightseeing areas such as Arashiyama.
-
E.
Ichibata Electric Railway
Ichibata Electric Railway is a private regional railway operator in Shimane Prefecture, Japan, best known for running local lines that connect Izumo and surrounding areas, including access to the Izumo Taisha shrine.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69d8e8d305088190ad13571532aa454c |
completed | April 10, 2026, 12:10 p.m. |
| NER | Named-entity recognition | batch_69e619096c1081909ce2cbf7ae804e73 |
completed | April 20, 2026, 12:16 p.m. |
Created at: April 10, 2026, 1:34 p.m.