Triple
T21312036
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Meitetsu Nagoya Main Line |
E525362
|
entity |
| Predicate | partOfNetwork |
P840
|
FINISHED |
| Object |
Meitetsu network
The Meitetsu network is a privately operated railway system in Japan’s Chubu region, centered on Nagoya, that connects urban, suburban, and regional destinations across Aichi and Gifu Prefectures.
|
E1477371
|
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: Meitetsu network | Statement: [Meitetsu Nagoya Main Line, partOfNetwork, Meitetsu network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Meitetsu network Context triple: [Meitetsu Nagoya Main Line, partOfNetwork, Meitetsu network]
-
A.
Keihan Electric Railway network
The Keihan Electric Railway network is a private railway system in Japan that primarily connects the Osaka and Kyoto metropolitan areas, serving as a major commuter and intercity transport corridor in the Kansai region.
-
B.
Keikyū network
The Keikyū network is a private railway system in the Greater Tokyo area of Japan, known for its fast commuter and airport access services connecting central Tokyo with Yokohama and Haneda Airport.
-
C.
Tokyu railway network
The Tokyu railway network is a major private rail system in the Greater Tokyo area, operated by Tokyu Corporation and serving key suburban and urban corridors including central hubs like Shibuya.
-
D.
Tobu Railway
Tobu Railway is a major private railway company in Japan that operates extensive rail networks in the Greater Tokyo area and surrounding regions.
-
E.
Seibu Railway
Seibu Railway is a major private railway operator in the Greater Tokyo area of Japan, running extensive commuter and interurban train services across Tokyo and Saitama.
- 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: Meitetsu network Triple: [Meitetsu Nagoya Main Line, partOfNetwork, Meitetsu network]
Generated description
The Meitetsu network is a privately operated railway system in Japan’s Chubu region, centered on Nagoya, that connects urban, suburban, and regional destinations across Aichi and Gifu Prefectures.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Meitetsu network Target entity description: The Meitetsu network is a privately operated railway system in Japan’s Chubu region, centered on Nagoya, that connects urban, suburban, and regional destinations across Aichi and Gifu Prefectures.
-
A.
Keihan Electric Railway network
The Keihan Electric Railway network is a private railway system in Japan that primarily connects the Osaka and Kyoto metropolitan areas, serving as a major commuter and intercity transport corridor in the Kansai region.
-
B.
Keikyū network
The Keikyū network is a private railway system in the Greater Tokyo area of Japan, known for its fast commuter and airport access services connecting central Tokyo with Yokohama and Haneda Airport.
-
C.
Tokyu railway network
The Tokyu railway network is a major private rail system in the Greater Tokyo area, operated by Tokyu Corporation and serving key suburban and urban corridors including central hubs like Shibuya.
-
D.
Tobu Railway
Tobu Railway is a major private railway company in Japan that operates extensive rail networks in the Greater Tokyo area and surrounding regions.
-
E.
Seibu Railway
Seibu Railway is a major private railway operator in the Greater Tokyo area of Japan, running extensive commuter and interurban train services across Tokyo and Saitama.
- 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_69e0b518b8948190ad69cf9a8784d397 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e75dca66ac8190a5f0a372a9bc25a7 |
completed | April 21, 2026, 11:21 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a099ed968d88190aa274406beb46e87 |
completed | May 17, 2026, 10:56 a.m. |
| NEDg | Description generation | batch_6a099fb54c00819083422ecadd9aa1f5 |
completed | May 17, 2026, 11 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a09a0242a94819095af1689fe5aea0a |
completed | May 17, 2026, 11:01 a.m. |
Created at: April 16, 2026, 4:22 p.m.