Triple
T6433534
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Iizuka, Fukuoka, Japan |
E129834
|
entity |
| Predicate | servedByRailwayLine |
P848
|
FINISHED |
| Object |
Chikuho Main Line
The Chikuho Main Line is a regional railway line in Fukuoka Prefecture, Japan, operated by JR Kyushu and known for connecting former coal-mining areas such as Iizuka with larger urban centers.
|
E849324
|
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: Chikuho Main Line | Statement: [Iizuka, Fukuoka, Japan, servedByRailwayLine, Chikuho Main Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chikuho Main Line Context triple: [Iizuka, Fukuoka, Japan, servedByRailwayLine, Chikuho Main Line]
-
A.
Kisei Main Line
The Kisei Main Line is a major railway line in Japan that runs along the Kii Peninsula, connecting cities in Osaka, Wakayama, and Mie Prefectures along the Pacific coast.
-
B.
Sōya Main Line
The Sōya Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that runs through the northernmost regions of the island, including the city of Wakkanai.
-
C.
Sanyo Main Line
The Sanyo Main Line is a major railway corridor in western Japan connecting the Kansai and Chugoku regions along the Seto Inland Sea coast.
-
D.
Sanin Main Line
The Sanin Main Line is a major railway route in western Japan running along the Sea of Japan coast through the San'in region, connecting cities such as Kyoto, Tottori, and Shimonoseki.
-
E.
Kosei Line
The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture 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: Chikuho Main Line Triple: [Iizuka, Fukuoka, Japan, servedByRailwayLine, Chikuho Main Line]
Generated description
The Chikuho Main Line is a regional railway line in Fukuoka Prefecture, Japan, operated by JR Kyushu and known for connecting former coal-mining areas such as Iizuka with larger urban centers.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Chikuho Main Line Target entity description: The Chikuho Main Line is a regional railway line in Fukuoka Prefecture, Japan, operated by JR Kyushu and known for connecting former coal-mining areas such as Iizuka with larger urban centers.
-
A.
Kisei Main Line
The Kisei Main Line is a major railway line in Japan that runs along the Kii Peninsula, connecting cities in Osaka, Wakayama, and Mie Prefectures along the Pacific coast.
-
B.
Sōya Main Line
The Sōya Main Line is a railway line in Hokkaido, Japan, operated by JR Hokkaido that runs through the northernmost regions of the island, including the city of Wakkanai.
-
C.
Sanyo Main Line
The Sanyo Main Line is a major railway corridor in western Japan connecting the Kansai and Chugoku regions along the Seto Inland Sea coast.
-
D.
Sanin Main Line
The Sanin Main Line is a major railway route in western Japan running along the Sea of Japan coast through the San'in region, connecting cities such as Kyoto, Tottori, and Shimonoseki.
-
E.
Kosei Line
The Kosei Line is a railway line in Japan operated by JR West that runs along the western shore of Lake Biwa, connecting Kyoto with the Shiga and Fukui prefecture 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_69c0084caac48190a7bc2ad8ba44536f |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c0693f73ec8190883470b57f8141aa |
completed | March 22, 2026, 10:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d636f0386481909a4957d57b2493ff |
completed | April 8, 2026, 11:07 a.m. |
| NEDg | Description generation | batch_69d63780a1b08190be5c05750ab46f04 |
completed | April 8, 2026, 11:09 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d6382565148190942ff8fce23b2f01 |
completed | April 8, 2026, 11:12 a.m. |
Created at: March 22, 2026, 4:45 p.m.