Triple
T17330898
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Izumo, Shimane Prefecture, Japan |
E420811
|
entity |
| Predicate | servedByRailway |
P848
|
FINISHED |
| Object |
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.
|
E1349787
|
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: Ichibata Electric Railway | Statement: [Izumo, Shimane Prefecture, Japan, servedByRailway, Ichibata Electric Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ichibata Electric Railway Context triple: [Izumo, Shimane Prefecture, Japan, servedByRailway, Ichibata Electric Railway]
-
A.
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.
-
B.
Ohmi Railway
Ohmi Railway is a Japanese private railway company that operates local train services and related transportation in Shiga Prefecture.
-
C.
Sanyo Electric Railway
Sanyo Electric Railway is a Japanese private railway company operating commuter rail services primarily in Hyōgo Prefecture, including routes that interconnect with other major regional rail networks.
-
D.
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.
-
E.
Keisei Electric Railway
Keisei Electric Railway is a major private railway operator in the Greater Tokyo area, best known for linking central Tokyo with Chiba Prefecture and Narita International Airport.
- 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: Ichibata Electric Railway Triple: [Izumo, Shimane Prefecture, Japan, servedByRailway, Ichibata Electric Railway]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ichibata Electric Railway Target entity description: 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.
-
A.
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.
-
B.
Ohmi Railway
Ohmi Railway is a Japanese private railway company that operates local train services and related transportation in Shiga Prefecture.
-
C.
Sanyo Electric Railway
Sanyo Electric Railway is a Japanese private railway company operating commuter rail services primarily in Hyōgo Prefecture, including routes that interconnect with other major regional rail networks.
-
D.
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.
-
E.
Keisei Electric Railway
Keisei Electric Railway is a major private railway operator in the Greater Tokyo area, best known for linking central Tokyo with Chiba Prefecture and Narita International Airport.
- 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_69d889d3adc881909319f1edb8d2a956 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e439d5c788819092bdc4d3de0ec958 |
completed | April 19, 2026, 2:11 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0590f57a6c8190b11b43fc79c2956b |
completed | May 14, 2026, 9:08 a.m. |
| NEDg | Description generation | batch_6a0594f351fc8190bbc88900cdafbdde |
completed | May 14, 2026, 9:25 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a05962396e08190bcf4327b9c2b02ee |
completed | May 14, 2026, 9:30 a.m. |
Created at: April 10, 2026, 5:43 a.m.