Triple
T10278836
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Itabashi, Tokyo |
E241039
|
entity |
| Predicate | hasRailService |
P782
|
FINISHED |
| Object | JR East Saikyo Line |
E23696
|
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: JR East Saikyo Line | Statement: [Itabashi, Tokyo, hasRailService, JR East Saikyo Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: JR East Saikyo Line Context triple: [Itabashi, Tokyo, hasRailService, JR East Saikyo Line]
-
A.
JR Saikyo Line
chosen
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
B.
JR East Nambu Line
The JR East Nambu Line is a commuter rail line in the Tokyo–Kawasaki area of Japan that connects multiple suburban communities and facilitates daily passenger transit across the Tama region.
-
C.
JR Tōzai Line
The JR Tōzai Line is a commuter rail line in the Kansai region of Japan operated by West Japan Railway Company (JR West), connecting Kyōbashi in Osaka with Amagasaki in Hyōgo via central Osaka.
-
D.
JR East Joban Line
The JR East Joban Line is a major railway line in Japan operated by East Japan Railway Company, running between central Tokyo and the Tohoku region along the Pacific coast.
-
E.
JR Chuo-Sobu Line
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.
- 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_69d381a94c1881908fc38fc263d9b9c2 |
completed | April 6, 2026, 9:49 a.m. |
| NER | Named-entity recognition | batch_69d4d29fdf2c819099dd581deac08cf2 |
completed | April 7, 2026, 9:47 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f61e2fa3bc81909edef00c61265c55 |
completed | May 2, 2026, 3:54 p.m. |
Created at: April 6, 2026, 11:38 a.m.