Triple
T2327816
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Saitama Prefecture |
E48329
|
entity |
| Predicate | railServedBy |
P782
|
FINISHED |
| Object |
Seibu Railway
Seibu Railway is a major private railway operator in the Greater Tokyo area of Japan, running extensive commuter and interurban train services across Tokyo and Saitama.
|
E277715
|
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: Seibu Railway | Statement: [Saitama Prefecture, railServedBy, Seibu Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Seibu Railway Context triple: [Saitama Prefecture, railServedBy, Seibu Railway]
-
A.
Tobu Railway
Tobu Railway is a major private railway company in Japan that operates extensive rail networks in the Greater Tokyo area and surrounding regions.
-
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.
Nankai Electric Railway
Nankai Electric Railway is a major private railway company in Japan’s Kansai region, operating key commuter and interurban lines connecting Osaka with Wakayama and Kansai International Airport.
-
D.
Tokyu Toyoko Line
The Tokyu Toyoko Line is a major private railway line in the Tokyo–Yokohama area that connects central Tokyo with Yokohama and links to multiple subway and intercity rail services.
-
E.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
- 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: Seibu Railway Triple: [Saitama Prefecture, railServedBy, Seibu Railway]
Generated description
Seibu Railway is a major private railway operator in the Greater Tokyo area of Japan, running extensive commuter and interurban train services across Tokyo and Saitama.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Seibu Railway Target entity description: Seibu Railway is a major private railway operator in the Greater Tokyo area of Japan, running extensive commuter and interurban train services across Tokyo and Saitama.
-
A.
Tobu Railway
Tobu Railway is a major private railway company in Japan that operates extensive rail networks in the Greater Tokyo area and surrounding regions.
-
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.
Nankai Electric Railway
Nankai Electric Railway is a major private railway company in Japan’s Kansai region, operating key commuter and interurban lines connecting Osaka with Wakayama and Kansai International Airport.
-
D.
Tokyu Toyoko Line
The Tokyu Toyoko Line is a major private railway line in the Tokyo–Yokohama area that connects central Tokyo with Yokohama and links to multiple subway and intercity rail services.
-
E.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
- 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_69a88aa308a88190b0b86c011fda7fce |
completed | March 4, 2026, 7:40 p.m. |
| NER | Named-entity recognition | batch_69abc64c7f1881909b0d847f7782e803 |
completed | March 7, 2026, 6:31 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69af5cce716c8190b87b117b270b9a84 |
completed | March 9, 2026, 11:50 p.m. |
| NEDg | Description generation | batch_69af5dea244c81909bd6bcdba0edf958 |
completed | March 9, 2026, 11:55 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69af5e6449e4819084313a5b44d46044 |
completed | March 9, 2026, 11:57 p.m. |
Created at: March 4, 2026, 7:50 p.m.