Triple
T14004211
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nakamozu Depot |
E336904
|
entity |
| Predicate | usedBy |
P260
|
FINISHED |
| Object |
Osaka Metro 21 series trains
The Osaka Metro 21 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and service on several key commuter lines.
|
E366440
|
NE FINISHED |
How this triple was built (4 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: Osaka Metro 21 series trains | Statement: [Nakamozu Depot, usedBy, Osaka Metro 21 series trains]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Osaka Metro 21 series trains Context triple: [Nakamozu Depot, usedBy, Osaka Metro 21 series trains]
-
A.
Osaka Metro 22 series trains
The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
-
B.
Osaka Metro 30 series trains
The Osaka Metro 30 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and use on busy urban lines such as the Tanimachi Line.
-
C.
Osaka Metro 23 series
The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
-
D.
Osaka Metro 25 series
The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
-
E.
Osaka Metro 20 series
The Osaka Metro 20 series is a type of electric multiple unit train used on Osaka's subway network, known for its stainless-steel construction and service on several key lines.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Osaka Metro 21 series trains Triple: [Nakamozu Depot, usedBy, Osaka Metro 21 series trains]
Generated description
The Osaka Metro 21 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and service on several key commuter lines.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Osaka Metro 21 series trains Target entity description: The Osaka Metro 21 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and service on several key commuter lines.
-
A.
Osaka Metro 22 series trains
The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
-
B.
Osaka Metro 30 series trains
The Osaka Metro 30 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and use on busy urban lines such as the Tanimachi Line.
-
C.
Osaka Metro 23 series
The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
-
D.
Osaka Metro 25 series
The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
-
E.
Osaka Metro 20 series
chosen
The Osaka Metro 20 series is a type of electric multiple unit train used on Osaka's subway network, known for its stainless-steel construction and service on several key lines.
- F. None of above.
Provenance (5 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_69d81c645c5c8190b1fd16a285a1b78a |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de2ed1d2548190bb46d6b7cba4ffde |
completed | April 14, 2026, 12:10 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fbc329891c8190b4dcb9913e235a1c |
completed | May 6, 2026, 10:39 p.m. |
| NEDg | Description generation | batch_69fbc5964b7c8190babbb3bd50a1aaec |
completed | May 6, 2026, 10:49 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69fbc912f0e08190be7c4f671b499c57 |
completed | May 6, 2026, 11:04 p.m. |
Created at: April 9, 2026, 10:19 p.m.