Triple
T16592533
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Namboku Line |
E403125
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object | Tokyo Metro 9000 series |
E895609
|
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 9000 series | Statement: [Namboku Line, rollingStock, Tokyo Metro 9000 series]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tokyo Metro 9000 series Context triple: [Namboku Line, rollingStock, Tokyo Metro 9000 series]
-
A.
Tokyo Metro 9000 series
chosen
The Tokyo Metro 9000 series is a fleet of electric multiple unit trains operated by Tokyo Metro, primarily known for serving the Namboku Line with modern, air-conditioned commuter services.
-
B.
Tokyo Metro 7000 series
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.
-
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 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.
-
E.
Tokyo Metro 17000 series
The Tokyo Metro 17000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Fukutoshin and Yurakucho Lines with improved energy efficiency and passenger comfort.
- 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_69d88387363c8190a97a0c942130de97 |
completed | April 10, 2026, 4:58 a.m. |
| NER | Named-entity recognition | batch_69e359a123e8819095cd73cd848a3345 |
completed | April 18, 2026, 10:14 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a007da8c5048190aaa9350f8fcc8a2e |
completed | May 10, 2026, 12:44 p.m. |
Created at: April 10, 2026, 5:16 a.m.