Triple
T16227681
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Taihaku-ku |
E393894
|
entity |
| Predicate | traversedBy |
P225
|
FINISHED |
| Object | Sendai Subway Namboku 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: Sendai Subway Namboku Line | Statement: [Taihaku-ku, traversedBy, Sendai Subway Namboku Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sendai Subway Namboku Line Context triple: [Taihaku-ku, traversedBy, Sendai Subway Namboku Line]
-
A.
Sendai Subway Tōzai Line
The Sendai Subway Tōzai Line is an east–west rapid transit line in Sendai, Japan, connecting key districts across the city as part of its urban subway network.
-
B.
Sendai Subway
chosen
Sendai Subway is an urban rapid transit system serving the city of Sendai in Japan, providing key north–south and east–west rail connections across the metropolitan area.
-
C.
Tozai Line
The Tozai Line is a major east–west rapid transit line forming part of the Sapporo Municipal Subway system in Sapporo, Japan.
-
D.
Tozai Line
The Tozai Line is a major Tokyo Metro subway line that runs east–west across Tokyo, connecting central business districts with suburban residential areas.
-
E.
JR Saikyo Line
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.
- 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_69d87f204df88190a8f88923decf9835 |
completed | April 10, 2026, 4:40 a.m. |
| NER | Named-entity recognition | batch_69e23d2785f88190ae80d5d61129d3e5 |
completed | April 17, 2026, 2:01 p.m. |
Created at: April 10, 2026, 5:03 a.m.