Triple
T6154337
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyu Corporation |
E137281
|
entity |
| Predicate | operatesRailwayLine |
P15252
|
FINISHED |
| Object |
Oimachi Line
The Oimachi Line is a commuter railway line in Tokyo, Japan, forming part of the Tokyu network and connecting central Tokyo with its southwestern suburbs.
|
E796946
|
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: Oimachi Line | Statement: [Tokyu Corporation, operatesRailwayLine, Oimachi Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Oimachi Line Context triple: [Tokyu Corporation, operatesRailwayLine, Oimachi Line]
-
A.
Imazatosuji Line
The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
-
B.
Yurikamome Line
The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
-
C.
Karasuma Line
The Karasuma Line is a major Kyoto Municipal Subway line running north–south through Kyoto, connecting key districts and transportation hubs including Kyoto Station.
-
D.
Negishi Line
The Negishi Line is a railway line in the Greater Tokyo area of Japan operated by JR East, connecting Yokohama with Ōfuna and serving as part of the Keihin-Tōhoku/Negishi through service corridor.
-
E.
Tsurumi Line
The Tsurumi Line is a short commuter rail line in Kanagawa Prefecture, Japan, primarily serving industrial and port areas along Tokyo Bay and operated by East Japan Railway Company (JR East).
- 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: Oimachi Line Triple: [Tokyu Corporation, operatesRailwayLine, Oimachi Line]
Generated description
The Oimachi Line is a commuter railway line in Tokyo, Japan, forming part of the Tokyu network and connecting central Tokyo with its southwestern suburbs.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Oimachi Line Target entity description: The Oimachi Line is a commuter railway line in Tokyo, Japan, forming part of the Tokyu network and connecting central Tokyo with its southwestern suburbs.
-
A.
Imazatosuji Line
The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
-
B.
Yurikamome Line
The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
-
C.
Karasuma Line
The Karasuma Line is a major Kyoto Municipal Subway line running north–south through Kyoto, connecting key districts and transportation hubs including Kyoto Station.
-
D.
Negishi Line
The Negishi Line is a railway line in the Greater Tokyo area of Japan operated by JR East, connecting Yokohama with Ōfuna and serving as part of the Keihin-Tōhoku/Negishi through service corridor.
-
E.
Tsurumi Line
The Tsurumi Line is a short commuter rail line in Kanagawa Prefecture, Japan, primarily serving industrial and port areas along Tokyo Bay and operated by East Japan Railway Company (JR East).
- 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_69c008a45d008190832a9e19f5d63406 |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c060fca4cc8190bf95231cd2a594c1 |
completed | March 22, 2026, 9:37 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d1076c28b08190a5a0ab74ccfb9909 |
completed | April 4, 2026, 12:43 p.m. |
| NEDg | Description generation | batch_69d107ebdd4c819084eff70c0b31d693 |
completed | April 4, 2026, 12:45 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69d1085b8ce4819086fe3a006f9ea13f |
completed | April 4, 2026, 12:47 p.m. |
Created at: March 22, 2026, 4:17 p.m.