Triple
T1640758
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Toei Subway |
E35464
|
entity |
| Predicate | hasLine |
P35
|
FINISHED |
| Object |
Toei Asakusa Line
The Toei Asakusa Line is a major Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central Tokyo with surrounding areas and offering through-services to several private railway lines.
|
E363338
|
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 Asakusa Line | Statement: [Toei Subway, hasLine, Toei Asakusa Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Toei Asakusa Line Context triple: [Toei Subway, hasLine, Toei Asakusa Line]
-
A.
Toei Oedo Line
The Toei Oedo Line is a major Tokyo subway loop and radial line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central districts with many key commercial and residential areas.
-
B.
Toei Shinjuku Line
The Toei Shinjuku Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running east–west across the city and connecting central Tokyo with its eastern suburbs.
-
C.
Tokyu Meguro Line
The Tokyu Meguro Line is a commuter railway line in Tokyo and Kanagawa operated by Tokyu Corporation, linking central Tokyo with its southwestern suburbs and offering through services onto various subway and other private railway lines.
-
D.
Tokyu Den-en-toshi Line
Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
-
E.
Tokyo Metro Marunouchi Line
The Tokyo Metro Marunouchi Line is one of Tokyo’s main subway lines, running in a loop-like route through central districts and connecting major hubs such as Shinjuku, Tokyo, and Ikebukuro.
- 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 Asakusa Line Triple: [Toei Subway, hasLine, Toei Asakusa Line]
Generated description
The Toei Asakusa Line is a major Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central Tokyo with surrounding areas and offering through-services to several private railway lines.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Toei Asakusa Line Target entity description: The Toei Asakusa Line is a major Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central Tokyo with surrounding areas and offering through-services to several private railway lines.
-
A.
Toei Oedo Line
The Toei Oedo Line is a major Tokyo subway loop and radial line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central districts with many key commercial and residential areas.
-
B.
Toei Shinjuku Line
The Toei Shinjuku Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running east–west across the city and connecting central Tokyo with its eastern suburbs.
-
C.
Tokyu Meguro Line
The Tokyu Meguro Line is a commuter railway line in Tokyo and Kanagawa operated by Tokyu Corporation, linking central Tokyo with its southwestern suburbs and offering through services onto various subway and other private railway lines.
-
D.
Tokyu Den-en-toshi Line
Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
-
E.
Tokyo Metro Marunouchi Line
The Tokyo Metro Marunouchi Line is one of Tokyo’s main subway lines, running in a loop-like route through central districts and connecting major hubs such as Shinjuku, Tokyo, and Ikebukuro.
- 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_69a88604618c81908b41f6429c431eb6 |
completed | March 4, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69a90a3c883c8190bec1d87ecedf2575 |
completed | March 5, 2026, 4:44 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b37371fbc08190abc2d3a1dd2f4e9a |
completed | March 13, 2026, 2:16 a.m. |
| NEDg | Description generation | batch_69b3773ca1148190ac2e83428b36eea4 |
completed | March 13, 2026, 2:32 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b3779b017481909d6e085f8795fe5f |
completed | March 13, 2026, 2:34 a.m. |
Created at: March 4, 2026, 7:28 p.m.