Triple
T10945562
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyo Metro Namboku Line |
E258586
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Ichigaya Station
Ichigaya Station is a major railway and subway hub in central Tokyo’s Chiyoda ward, serving multiple lines and providing access to nearby government offices, universities, and the Ichigaya district.
|
E1191377
|
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: Ichigaya Station | Statement: [Tokyo Metro Namboku Line, hasStation, Ichigaya Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ichigaya Station Context triple: [Tokyo Metro Namboku Line, hasStation, Ichigaya Station]
-
A.
Imadegawa Station
Imadegawa Station is an underground metro station on Kyoto’s subway network serving the area around Doshisha University and the Kyoto Imperial Palace.
-
B.
Shiyakusho Station
Shiyakusho Station is a subway station in Nagoya, Japan, serving the city hall area and providing convenient access to Nagoya Castle.
-
C.
Ishikawacho Station
Ishikawacho Station is a railway station in Yokohama, Japan, serving as a key access point to the historic Yamate district and nearby tourist attractions such as Chinatown.
-
D.
Negishi Station
Negishi Station is a railway station in Yokohama, Japan, serving as a local transit hub within the city's Isogo Ward.
-
E.
Shibusawa Station
Shibusawa Station is a railway station in Hadano, Kanagawa Prefecture, Japan, serving as a local stop on the Odakyu Odawara 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: Ichigaya Station Triple: [Tokyo Metro Namboku Line, hasStation, Ichigaya Station]
Generated description
Ichigaya Station is a major railway and subway hub in central Tokyo’s Chiyoda ward, serving multiple lines and providing access to nearby government offices, universities, and the Ichigaya district.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ichigaya Station Target entity description: Ichigaya Station is a major railway and subway hub in central Tokyo’s Chiyoda ward, serving multiple lines and providing access to nearby government offices, universities, and the Ichigaya district.
-
A.
Imadegawa Station
Imadegawa Station is an underground metro station on Kyoto’s subway network serving the area around Doshisha University and the Kyoto Imperial Palace.
-
B.
Shiyakusho Station
Shiyakusho Station is a subway station in Nagoya, Japan, serving the city hall area and providing convenient access to Nagoya Castle.
-
C.
Ishikawacho Station
Ishikawacho Station is a railway station in Yokohama, Japan, serving as a key access point to the historic Yamate district and nearby tourist attractions such as Chinatown.
-
D.
Negishi Station
Negishi Station is a railway station in Yokohama, Japan, serving as a local transit hub within the city's Isogo Ward.
-
E.
Shibusawa Station
Shibusawa Station is a railway station in Hadano, Kanagawa Prefecture, Japan, serving as a local stop on the Odakyu Odawara 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_69d6aa8769b4819082bfe5e61b9017f0 |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d770e9a89081908979efd1d9e6af66 |
completed | April 9, 2026, 9:27 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffdbb445a48190ba3dafb1f076ac83 |
completed | May 10, 2026, 1:13 a.m. |
| NEDg | Description generation | batch_69ffdd3c77908190b55c926445724348 |
completed | May 10, 2026, 1:19 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ffddfdd3a48190a16dab4d458dc475 |
completed | May 10, 2026, 1:23 a.m. |
Created at: April 8, 2026, 9:23 p.m.