Triple
T4121394
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Takamatsu, Kagawa Prefecture, Japan |
E92619
|
entity |
| Predicate | servedByRailway |
P848
|
FINISHED |
| Object |
Kotoden (Takamatsu-Kotohira Electric Railroad)
Kotoden (Takamatsu-Kotohira Electric Railroad) is a private railway operator in Kagawa Prefecture, Japan, running a network of local commuter and regional lines centered on Takamatsu.
|
E416060
|
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: Kotoden (Takamatsu-Kotohira Electric Railroad) | Statement: [Takamatsu, Kagawa Prefecture, Japan, servedByRailway, Kotoden (Takamatsu-Kotohira Electric Railroad)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Kotoden (Takamatsu-Kotohira Electric Railroad) Context triple: [Takamatsu, Kagawa Prefecture, Japan, servedByRailway, Kotoden (Takamatsu-Kotohira Electric Railroad)]
-
A.
Saitama Railway
Saitama Railway is a Japanese railway company operating a key commuter line that connects Saitama Prefecture with the greater Tokyo metropolitan rail network.
-
B.
Nagasaki Electric Tramway
Nagasaki Electric Tramway is a streetcar operator providing one of Japan’s oldest and most iconic tram services throughout the city of Nagasaki.
-
C.
Hankai Tramway Co.
Hankai Tramway Co. is a Japanese private railway company that operates historic streetcar and tram services in the Osaka and Sakai areas.
-
D.
Kita-Toda Station
Kita-Toda Station is a railway station in Toda, Saitama Prefecture, Japan, operated by JR East.
-
E.
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.
- 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: Kotoden (Takamatsu-Kotohira Electric Railroad) Triple: [Takamatsu, Kagawa Prefecture, Japan, servedByRailway, Kotoden (Takamatsu-Kotohira Electric Railroad)]
Generated description
Kotoden (Takamatsu-Kotohira Electric Railroad) is a private railway operator in Kagawa Prefecture, Japan, running a network of local commuter and regional lines centered on Takamatsu.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Kotoden (Takamatsu-Kotohira Electric Railroad) Target entity description: Kotoden (Takamatsu-Kotohira Electric Railroad) is a private railway operator in Kagawa Prefecture, Japan, running a network of local commuter and regional lines centered on Takamatsu.
-
A.
Saitama Railway
Saitama Railway is a Japanese railway company operating a key commuter line that connects Saitama Prefecture with the greater Tokyo metropolitan rail network.
-
B.
Nagasaki Electric Tramway
Nagasaki Electric Tramway is a streetcar operator providing one of Japan’s oldest and most iconic tram services throughout the city of Nagasaki.
-
C.
Hankai Tramway Co.
Hankai Tramway Co. is a Japanese private railway company that operates historic streetcar and tram services in the Osaka and Sakai areas.
-
D.
Kita-Toda Station
Kita-Toda Station is a railway station in Toda, Saitama Prefecture, Japan, operated by JR East.
-
E.
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.
- 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_69aed9685f70819086932777aec8d959 |
completed | March 9, 2026, 2:30 p.m. |
| NER | Named-entity recognition | batch_69af020549dc8190a81a5dbbf70288c7 |
completed | March 9, 2026, 5:23 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b576b13cc881908fea25c686141546 |
completed | March 14, 2026, 2:54 p.m. |
| NEDg | Description generation | batch_69b577ac31888190b6182b00bd5c709f |
completed | March 14, 2026, 2:58 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b57839ee548190804ef306fc9b3a6e |
completed | March 14, 2026, 3:01 p.m. |
Created at: March 9, 2026, 3:41 p.m.