Triple
T3499099
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chuo Line (Osaka Metro) |
E73920
|
entity |
| Predicate | hasRollingStock |
P1305
|
FINISHED |
| Object |
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.
|
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 20 series | Statement: [Chuo Line (Osaka Metro), hasRollingStock, Osaka Metro 20 series]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Osaka Metro 20 series Context triple: [Chuo Line (Osaka Metro), hasRollingStock, Osaka Metro 20 series]
-
A.
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.
-
B.
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.
-
C.
Osaka Metro 30000 series
The Osaka Metro 30000 series is a modern electric multiple unit train type operated by Osaka Metro, featuring air conditioning, energy-efficient systems, and improved passenger comfort for urban subway services.
-
D.
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.
-
E.
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.
- 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 20 series Triple: [Chuo Line (Osaka Metro), hasRollingStock, Osaka Metro 20 series]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Osaka Metro 20 series Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
Osaka Metro 30000 series
The Osaka Metro 30000 series is a modern electric multiple unit train type operated by Osaka Metro, featuring air conditioning, energy-efficient systems, and improved passenger comfort for urban subway services.
-
D.
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.
-
E.
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.
- F. None of above. chosen
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_69ad85cdb6e48190a335d412b9194ed8 |
completed | March 8, 2026, 2:21 p.m. |
| NER | Named-entity recognition | batch_69adbbd3ad548190abbfae820bf3b66d |
completed | March 8, 2026, 6:11 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b38bbf19808190b42c9feddc2a1030 |
completed | March 13, 2026, 3:59 a.m. |
| NEDg | Description generation | batch_69b38c2d2ac88190b1b63faa871193e2 |
completed | March 13, 2026, 4:01 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b38c795e4c8190a7171daab5aed4b1 |
completed | March 13, 2026, 4:03 a.m. |
Created at: March 8, 2026, 3:18 p.m.