Triple
T4873991
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Oppama Station |
E109155
|
entity |
| Predicate | operatedBy |
P86
|
FINISHED |
| Object |
Keikyū
Keikyū is a major private railway operator in the Greater Tokyo area of Japan, known for its commuter and airport rail services.
|
E548853
|
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: Keikyū | Statement: [Oppama Station, operatedBy, Keikyū]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Keikyū Context triple: [Oppama Station, operatedBy, Keikyū]
-
A.
Mukōjima
Mukōjima is a neighborhood in Tokyo’s Sumida ward known for its traditional atmosphere, historic geisha district, and riverside cherry blossom viewing along the Sumida River.
-
B.
Yashima
Yashima is a historic plateau and former island in Takamatsu, Kagawa Prefecture, known for its panoramic views of the Seto Inland Sea and as a key battlefield of the Genpei War.
-
C.
Ōshima
Ōshima is a Japanese island region in Kagoshima Prefecture, known for its subtropical climate, distinct local culture, and role as a key administrative and geographic area within the Amami Islands.
-
D.
Hahajima
Hahajima is a remote, subtropical island in Japan’s Ogasawara (Bonin) archipelago, known for its rugged terrain, rich endemic biodiversity, and relative isolation.
-
E.
Kirishima
Kirishima is a city in Kagoshima Prefecture, Japan, known for its volcanic mountain range, hot springs, and role in Japanese mythology.
- 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: Keikyū Triple: [Oppama Station, operatedBy, Keikyū]
Generated description
Keikyū is a major private railway operator in the Greater Tokyo area of Japan, known for its commuter and airport rail services.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Keikyū Target entity description: Keikyū is a major private railway operator in the Greater Tokyo area of Japan, known for its commuter and airport rail services.
-
A.
Mukōjima
Mukōjima is a neighborhood in Tokyo’s Sumida ward known for its traditional atmosphere, historic geisha district, and riverside cherry blossom viewing along the Sumida River.
-
B.
Yashima
Yashima is a historic plateau and former island in Takamatsu, Kagawa Prefecture, known for its panoramic views of the Seto Inland Sea and as a key battlefield of the Genpei War.
-
C.
Ōshima
Ōshima is a Japanese island region in Kagoshima Prefecture, known for its subtropical climate, distinct local culture, and role as a key administrative and geographic area within the Amami Islands.
-
D.
Hahajima
Hahajima is a remote, subtropical island in Japan’s Ogasawara (Bonin) archipelago, known for its rugged terrain, rich endemic biodiversity, and relative isolation.
-
E.
Kirishima
Kirishima is a city in Kagoshima Prefecture, Japan, known for its volcanic mountain range, hot springs, and role in Japanese mythology.
- 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_69bd440d96a48190b0c87069adef2af1 |
completed | March 20, 2026, 12:56 p.m. |
| NER | Named-entity recognition | batch_69bd6d9fa0b08190ab1fc7ec395dca37 |
completed | March 20, 2026, 3:54 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c097a5c6a4819082f4b9bf113ea33b |
completed | March 23, 2026, 1:30 a.m. |
| NEDg | Description generation | batch_69c0992baa3c8190a6451ef98f8d29e4 |
completed | March 23, 2026, 1:36 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c09990da18819099fdc8f25f2ddef2 |
completed | March 23, 2026, 1:38 a.m. |
Created at: March 20, 2026, 1:27 p.m.