Triple
T3530418
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Shinagawa |
E74645
|
entity |
| Predicate | servedByRailwayLine |
P848
|
FINISHED |
| Object |
Tōkyū Ikegami Line
The Tōkyū Ikegami Line is a commuter railway line in Tokyo operated by Tokyu Corporation, connecting residential areas in Ōta Ward with central districts such as Shinagawa.
|
E598434
|
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: Tōkyū Ikegami Line | Statement: [Shinagawa, servedByRailwayLine, Tōkyū Ikegami Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tōkyū Ikegami Line Context triple: [Shinagawa, servedByRailwayLine, Tōkyū Ikegami 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.
Rinkai Line
The Rinkai Line is a Tokyo railway line that connects central Tokyo with the waterfront Odaiba area and other bayside districts.
-
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.
Keio Inokashira Line
The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
-
E.
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.
- 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: Tōkyū Ikegami Line Triple: [Shinagawa, servedByRailwayLine, Tōkyū Ikegami Line]
Generated description
The Tōkyū Ikegami Line is a commuter railway line in Tokyo operated by Tokyu Corporation, connecting residential areas in Ōta Ward with central districts such as Shinagawa.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tōkyū Ikegami Line Target entity description: The Tōkyū Ikegami Line is a commuter railway line in Tokyo operated by Tokyu Corporation, connecting residential areas in Ōta Ward with central districts such as Shinagawa.
-
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.
Rinkai Line
The Rinkai Line is a Tokyo railway line that connects central Tokyo with the waterfront Odaiba area and other bayside districts.
-
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.
Keio Inokashira Line
The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
-
E.
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.
- 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_69ad85d1a3948190931fd1ea1f49717b |
completed | March 8, 2026, 2:21 p.m. |
| NER | Named-entity recognition | batch_69adbc9764a881908aa8d25dc9adf59e |
completed | March 8, 2026, 6:14 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c673e0dbdc81909745d2a35bd53f88 |
completed | March 27, 2026, 12:11 p.m. |
| NEDg | Description generation | batch_69c675e712048190902e4fa38e150b25 |
completed | March 27, 2026, 12:19 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c6763a7bd48190820c1b2fed33de9e |
completed | March 27, 2026, 12:21 p.m. |
Created at: March 8, 2026, 3:19 p.m.