Triple
T15204014
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Toei Asakusa Line |
E363338
|
entity |
| Predicate | rollingStock |
P1305
|
FINISHED |
| Object |
Toei 5300 series (historical)
The Toei 5300 series (historical) was a Japanese electric multiple unit train type that operated on Tokyo’s Toei Asakusa Line, known for its through-services with private railways and modernization of the line’s commuter fleet.
|
E1143867
|
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: Toei 5300 series (historical) | Statement: [Toei Asakusa Line, rollingStock, Toei 5300 series (historical)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Toei 5300 series (historical) Context triple: [Toei Asakusa Line, rollingStock, Toei 5300 series (historical)]
-
A.
Toei 10-520 series
The Toei 10-520 series is a modern electric multiple unit train operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Shinjuku Line, featuring updated interiors and systems compared to earlier 10-000 series variants.
-
B.
Toei 10-300 series
The Toei 10-300 series is a Japanese electric multiple unit train type operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Subway, known for its modern design and through-services with JR lines.
-
C.
Toei 12-000 series
The Toei 12-000 series is a fleet of electric multiple unit trains operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Ōedo Line, known for their deep-level subway operation and distinctive modern design.
-
D.
Toei 6300 series EMU
The Toei 6300 series EMU is a Japanese electric multiple unit train type operated by the Tokyo Metropolitan Bureau of Transportation, primarily used on through-services connecting the Toei Mita Line with other suburban lines.
-
E.
Tokyu 5050 series
The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
- 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: Toei 5300 series (historical) Triple: [Toei Asakusa Line, rollingStock, Toei 5300 series (historical)]
Generated description
The Toei 5300 series (historical) was a Japanese electric multiple unit train type that operated on Tokyo’s Toei Asakusa Line, known for its through-services with private railways and modernization of the line’s commuter fleet.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Toei 5300 series (historical) Target entity description: The Toei 5300 series (historical) was a Japanese electric multiple unit train type that operated on Tokyo’s Toei Asakusa Line, known for its through-services with private railways and modernization of the line’s commuter fleet.
-
A.
Toei 10-520 series
The Toei 10-520 series is a modern electric multiple unit train operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Shinjuku Line, featuring updated interiors and systems compared to earlier 10-000 series variants.
-
B.
Toei 10-300 series
The Toei 10-300 series is a Japanese electric multiple unit train type operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Subway, known for its modern design and through-services with JR lines.
-
C.
Toei 12-000 series
The Toei 12-000 series is a fleet of electric multiple unit trains operated by the Tokyo Metropolitan Bureau of Transportation on the Toei Ōedo Line, known for their deep-level subway operation and distinctive modern design.
-
D.
Toei 6300 series EMU
The Toei 6300 series EMU is a Japanese electric multiple unit train type operated by the Tokyo Metropolitan Bureau of Transportation, primarily used on through-services connecting the Toei Mita Line with other suburban lines.
-
E.
Tokyu 5050 series
The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
- 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_69d85a0b78bc8190b6e5ad51a2c4cfc5 |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e006b693a48190a6230b7b52bc8cd3 |
completed | April 15, 2026, 9:44 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fed33b911c8190815341a342a8d3c8 |
completed | May 9, 2026, 6:24 a.m. |
| NEDg | Description generation | batch_69fed744f8b48190948d42a8da9d2e70 |
completed | May 9, 2026, 6:42 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69fed7d9934c8190bd2d00830e5d33bb |
completed | May 9, 2026, 6:44 a.m. |
Created at: April 10, 2026, 3:11 a.m.