Triple
T13416280
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nagano Electric Railway |
E313222
|
entity |
| Predicate | ownsLine |
P69641
|
FINISHED |
| Object | Nagano Line |
—
|
NE NERFINISHED |
How this triple was built (3 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: Nagano Line | Statement: [Nagano Electric Railway, ownsLine, Nagano Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nagano Line Context triple: [Nagano Electric Railway, ownsLine, Nagano Line]
-
A.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
-
B.
Shinetsu Main Line
The Shinetsu Main Line is a major railway line in Japan operated by JR East that historically connected the Tokyo region with Niigata Prefecture across central Honshu.
-
C.
Kusatsu Line
The Kusatsu Line is a regional railway line in Japan’s Kansai area operated by JR West, connecting Shiga Prefecture’s inland communities with major urban rail hubs.
-
D.
Takayama Main Line
The Takayama Main Line is a scenic railway route in central Japan that runs through the mountainous Hida region, connecting Gifu and Toyama Prefectures.
-
E.
Nambu Line
The Nambu Line is a railway line in the Tokyo metropolitan area of Japan operated by JR East, connecting Kawasaki in Kanagawa Prefecture with Tachikawa in western Tokyo and serving as a key commuter route.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Nagano Line Target entity description: The Nagano Line is a railway line in Nagano Prefecture, Japan, providing local and commuter rail services as part of the Nagano Electric Railway network.
-
A.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
-
B.
Shinetsu Main Line
The Shinetsu Main Line is a major railway line in Japan operated by JR East that historically connected the Tokyo region with Niigata Prefecture across central Honshu.
-
C.
Kusatsu Line
The Kusatsu Line is a regional railway line in Japan’s Kansai area operated by JR West, connecting Shiga Prefecture’s inland communities with major urban rail hubs.
-
D.
Takayama Main Line
The Takayama Main Line is a scenic railway route in central Japan that runs through the mountainous Hida region, connecting Gifu and Toyama Prefectures.
-
E.
Nambu Line
The Nambu Line is a railway line in the Tokyo metropolitan area of Japan operated by JR East, connecting Kawasaki in Kanagawa Prefecture with Tachikawa in western Tokyo and serving as a key commuter route.
- F. None of above. chosen
Provenance (2 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_69d806ad0c44819088833ae1ec9e9690 |
completed | April 9, 2026, 8:06 p.m. |
| NER | Named-entity recognition | batch_69dbaeb6e904819098cc9153fd2feaf5 |
completed | April 12, 2026, 2:39 p.m. |
Created at: April 9, 2026, 9:39 p.m.