Triple
T1366294
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sendagaya |
E30009
|
entity |
| Predicate | servedByLine |
P1293
|
FINISHED |
| Object |
JR Chuo-Sobu Line
The JR Chuo-Sobu Line is a major local railway line in Tokyo and surrounding areas operated by JR East, connecting central city districts and numerous commuter neighborhoods.
|
E251132
|
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: JR Chuo-Sobu Line | Statement: [Sendagaya, servedByLine, JR Chuo-Sobu Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: JR Chuo-Sobu Line Context triple: [Sendagaya, servedByLine, JR Chuo-Sobu Line]
-
A.
JR Yamanote Line
The JR Yamanote Line is a busy circular railway loop in central Tokyo that connects many of the city’s major urban hubs and transit interchanges.
-
B.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
C.
JR Shonan–Shinjuku Line
The JR Shonan–Shinjuku Line is a major Japan Railways commuter and intercity rail service that links the Shōnan area and Saitama via central Tokyo, providing through-running connections across multiple existing lines.
-
D.
Tobu Skytree Line
The Tobu Skytree Line is a major private railway line in the Tokyo area operated by Tobu Railway, serving central Tokyo and extending northward toward Saitama and Tochigi, including access to the Tokyo Skytree.
-
E.
Chuo Line
The Chuo Line is a major rapid transit line in the Osaka Metro system that runs east–west through central Osaka, connecting key commercial and residential districts.
- 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: JR Chuo-Sobu Line Triple: [Sendagaya, servedByLine, JR Chuo-Sobu Line]
Generated description
The JR Chuo-Sobu Line is a major local railway line in Tokyo and surrounding areas operated by JR East, connecting central city districts and numerous commuter neighborhoods.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: JR Chuo-Sobu Line Target entity description: The JR Chuo-Sobu Line is a major local railway line in Tokyo and surrounding areas operated by JR East, connecting central city districts and numerous commuter neighborhoods.
-
A.
JR Yamanote Line
The JR Yamanote Line is a busy circular railway loop in central Tokyo that connects many of the city’s major urban hubs and transit interchanges.
-
B.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
C.
JR Shonan–Shinjuku Line
The JR Shonan–Shinjuku Line is a major Japan Railways commuter and intercity rail service that links the Shōnan area and Saitama via central Tokyo, providing through-running connections across multiple existing lines.
-
D.
Tobu Skytree Line
The Tobu Skytree Line is a major private railway line in the Tokyo area operated by Tobu Railway, serving central Tokyo and extending northward toward Saitama and Tochigi, including access to the Tokyo Skytree.
-
E.
Chuo Line
The Chuo Line is a major rapid transit line in the Osaka Metro system that runs east–west through central Osaka, connecting key commercial and residential districts.
- 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_69a498f912008190a376a98b207b2071 |
completed | March 1, 2026, 7:52 p.m. |
| NER | Named-entity recognition | batch_69a4c2d1d15481909d58b6fd8aa2e585 |
completed | March 1, 2026, 10:50 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae719488288190b3f954c037af3d3f |
completed | March 9, 2026, 7:07 a.m. |
| NEDg | Description generation | batch_69ae72dad0188190b279932087109a1c |
completed | March 9, 2026, 7:12 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ae733c44008190ac1429da66cf77aa |
completed | March 9, 2026, 7:14 a.m. |
Created at: March 1, 2026, 7:57 p.m.