Triple
T10695985
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Fukushima Prefecture |
E252139
|
entity |
| Predicate | hasRailwayLine |
P848
|
FINISHED |
| Object | Jōban Line |
E690755
|
NE FINISHED |
How this triple was built (2 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: Jōban Line | Statement: [Fukushima Prefecture, hasRailwayLine, Jōban Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Jōban Line Context triple: [Fukushima Prefecture, hasRailwayLine, Jōban Line]
-
A.
Jōban Line
chosen
The Jōban Line is a major railway corridor in Japan operated by JR East, connecting central Tokyo with the northeastern Kanto and Tōhoku regions along the Pacific coast.
-
B.
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.
-
C.
Sotobō Line
The Sotobō Line is a railway line in Chiba Prefecture, Japan, running along the Pacific coast of the Bōsō Peninsula and connecting suburban and regional communities with the greater Tokyo area.
-
D.
Uchibō Line
The Uchibō Line is a coastal railway route in Chiba Prefecture, Japan, operated by JR East and known for connecting Tokyo’s outskirts with towns along the western side of the Bōsō Peninsula.
-
E.
Hanzōmon Line
The Hanzōmon Line is a Tokyo Metro subway line in Tokyo, Japan, connecting central districts with eastern and southwestern suburbs as part of the city’s urban rail network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d6aa5bd7c08190a816e733b4045c23 |
completed | April 8, 2026, 7:19 p.m. |
| NER | Named-entity recognition | batch_69d6fd3af5248190ab807965255e9ad2 |
completed | April 9, 2026, 1:13 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fd5bab66488190a465e40f1181506e |
completed | May 8, 2026, 3:42 a.m. |
Created at: April 8, 2026, 9:11 p.m.