Triple
T6870427
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Seibu Yurakucho Line |
E158528
|
entity |
| Predicate | rollingStockUsed |
P5426
|
FINISHED |
| Object | Tokyo Metro 7000 series |
E127468
|
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: Tokyo Metro 7000 series | Statement: [Seibu Yurakucho Line, rollingStockUsed, Tokyo Metro 7000 series]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tokyo Metro 7000 series Context triple: [Seibu Yurakucho Line, rollingStockUsed, Tokyo Metro 7000 series]
-
A.
Tokyo Metro 7000 series
chosen
The Tokyo Metro 7000 series is a Japanese electric multiple unit train type operated by Tokyo Metro, primarily used on busy commuter subway lines in Tokyo.
-
B.
Tokyo Metro 8000 series
The Tokyo Metro 8000 series is a fleet of electric multiple unit trains introduced in the early 1980s for Tokyo’s subway network, known for their long service life and multiple refurbishment programs.
-
C.
Tokyo Metro 18000 series
The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
-
D.
Tokyo Metro 1000 series
The Tokyo Metro 1000 series is a modern electric multiple unit train used on Tokyo’s subway system, designed with retro-inspired styling that pays homage to the original Ginza Line cars while incorporating contemporary technology and comfort features.
-
E.
Tokyo Metro 10000 series
The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo 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_69c68831e3648190a643c328122e4d43 |
completed | March 27, 2026, 1:37 p.m. |
| NER | Named-entity recognition | batch_69c6d8aa47f48190bc7cad3cc652f530 |
completed | March 27, 2026, 7:21 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7583c2548819096f8e1b8d1d34fcf |
completed | March 28, 2026, 4:25 a.m. |
Created at: March 27, 2026, 2:22 p.m.