Triple
T5935543
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | JR East urban network |
E132032
|
entity |
| Predicate | hasLine |
P35
|
FINISHED |
| Object | Tōhoku Main Line (suburban section) |
E445085
|
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: Tōhoku Main Line (suburban section) | Statement: [JR East urban network, hasLine, Tōhoku Main Line (suburban section)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tōhoku Main Line (suburban section) Context triple: [JR East urban network, hasLine, Tōhoku Main Line (suburban section)]
-
A.
Tōhoku Main Line
chosen
The Tōhoku Main Line is a major Japanese railway corridor running through the Tōhoku region, historically serving as the primary conventional rail route between Tokyo and northern Honshu.
-
B.
Keihin-Tōhoku Line
The Keihin-Tōhoku Line is a major JR East commuter rail line in the Greater Tokyo area that runs north–south through Tokyo, connecting Saitama and Kanagawa prefectures.
-
C.
Utsunomiya Line
The Utsunomiya Line is a major JR East railway corridor in Japan connecting Tokyo with Utsunomiya and other cities in Tochigi Prefecture, serving as an important commuter and intercity route in the Kanto region.
-
D.
Jōetsu Line
The Jōetsu Line is a major railway line in Japan operated by JR East that connects the Kanto region with Niigata Prefecture through the mountainous interior of Honshu.
-
E.
Tanagawa Line
The Tanagawa Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passengers near the coastal area.
- 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_69c0085c55dc8190aa90e242c956e2fa |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c038eb56ec81909be03509730b7cc1 |
completed | March 22, 2026, 6:46 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c0c069e450819096b268637ffcd219 |
completed | March 23, 2026, 4:24 a.m. |
Created at: March 22, 2026, 4:01 p.m.