Triple
T16536418
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Marunouchi business district |
E401702
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | Toei Mita Line (nearby via Otemachi) |
E169957
|
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: Toei Mita Line (nearby via Otemachi) | Statement: [Marunouchi business district, servedBy, Toei Mita Line (nearby via Otemachi)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Toei Mita Line (nearby via Otemachi) Context triple: [Marunouchi business district, servedBy, Toei Mita Line (nearby via Otemachi)]
-
A.
Toei Mita Line at Otemachi
chosen
The Toei Mita Line at Otemachi is a major Tokyo subway line stop that serves as a key transfer point within the city’s extensive urban rail network.
-
B.
Tokyo Metro Chiyoda Line (nearby via Kasumigaseki)
Tokyo Metro Chiyoda Line is a major Tokyo subway line running through central districts and key hubs such as Kasumigaseki, connecting residential areas with important business and government centers.
-
C.
Tokyo Metro Hibiya Line (nearby via Kasumigaseki)
Tokyo Metro Hibiya Line is a major Tokyo subway line running through central districts such as Kasumigaseki, connecting key business, government, and commercial areas across the city.
-
D.
Toei Mita Line at Jimbocho Station
The Toei Mita Line at Jimbocho Station is a Tokyo subway line stop in Chiyoda Ward that serves as a key transfer point between the Mita and Shinjuku lines in a major educational and publishing district.
-
E.
Tokyo Metro Toei Mita Line at Otemachi
Tokyo Metro Toei Mita Line at Otemachi is a subway line stop within Tokyo’s extensive urban rail network, serving the Otemachi business district and providing transfers to multiple intersecting Tokyo Metro lines.
- 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_69d88384bc30819084229e7dcdc39a41 |
completed | April 10, 2026, 4:58 a.m. |
| NER | Named-entity recognition | batch_69e34558ec448190a6dcc15d62d1889c |
completed | April 18, 2026, 8:48 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0067aafee48190a0652fb4fac04a5b |
completed | May 10, 2026, 11:10 a.m. |
Created at: April 10, 2026, 5:15 a.m.