Triple
T13336109
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ichigaya district, Tokyo |
E317696
|
entity |
| Predicate | hasRailConnection |
P848
|
FINISHED |
| Object | JR Chūō-Sōbu Line |
—
|
NE NERFINISHED |
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: JR Chūō-Sōbu Line | Statement: [Ichigaya district, Tokyo, hasRailConnection, JR Chūō-Sōbu Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: JR Chūō-Sōbu Line Context triple: [Ichigaya district, Tokyo, hasRailConnection, JR Chūō-Sōbu Line]
-
A.
JR Chūō Line
The JR Chūō Line is a major Japanese railway line in the Tokyo metropolitan area that connects central Tokyo with its western suburbs and beyond, serving as a key commuter and intercity route.
-
B.
JR East Tōkaidō Main Line
The JR East Tōkaidō Main Line is a major railway corridor in Japan that runs along the Pacific coast of Honshu, connecting Tokyo with key cities in the Kantō and Tōkai regions.
-
C.
Sanyō Shinkansen line
The Sanyō Shinkansen line is a major high-speed railway corridor in Japan that connects Osaka with Fukuoka, forming the western portion of the country’s bullet train network.
-
D.
JR Chuo-Sobu Line
chosen
The JR Chuo-Sobu Line is a major local railway line in Tokyo and surrounding areas operated by JR East, connecting central city districts and numerous commuter neighborhoods.
-
E.
Chūō-Sōbu Line
The Chūō-Sōbu Line is a busy commuter rail line in Tokyo and Chiba, Japan, running local services that connect central Tokyo with its western suburbs and eastern neighboring prefecture.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69d806b5a3c08190b42c267fb092f98a |
completed | April 9, 2026, 8:06 p.m. |
| NER | Named-entity recognition | batch_69d99d00b75c8190af98784c7df904c8 |
completed | April 11, 2026, 12:59 a.m. |
Created at: April 9, 2026, 9:31 p.m.