Triple
T16592534
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Namboku Line |
E403125
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object | Saitama Rapid Railway 2000 series |
E813691
|
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: Saitama Rapid Railway 2000 series | Statement: [Namboku Line, rollingStock, Saitama Rapid Railway 2000 series]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Saitama Rapid Railway 2000 series Context triple: [Namboku Line, rollingStock, Saitama Rapid Railway 2000 series]
-
A.
Saitama Rapid Railway 2000 series EMU
chosen
The Saitama Rapid Railway 2000 series EMU is a Japanese electric multiple unit train type used for through-services between the Saitama Rapid Railway Line and Tokyo metro and suburban lines, known for its stainless-steel body and commuter-oriented interior.
-
B.
Keio 1000 series EMU
The Keio 1000 series EMU is a Japanese electric multiple unit train operated by Keio Corporation, known for serving Tokyo’s Inokashira Line with modern, colorful commuter rolling stock.
-
C.
JR East 205 series
The JR East 205 series is a Japanese electric multiple unit commuter train type introduced in the 1980s and widely used on various urban and suburban lines in the Tokyo area.
-
D.
Seibu 2000 series EMU
The Seibu 2000 series EMU is a Japanese electric multiple unit train type operated by Seibu Railway, primarily used for commuter services in the Tokyo area.
-
E.
Seibu 30000 series EMU
The Seibu 30000 series EMU is a modern Japanese commuter train operated by Seibu Railway, known for its distinctive rounded design and improved passenger comfort features.
- 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_6a00759b9e5081909815d2cd00d44490 |
completed | May 10, 2026, 12:10 p.m. |
Created at: April 10, 2026, 5:16 a.m.