Triple
T5676896
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | E231 series EMU |
E125107
|
entity |
| Predicate | manufacturer |
P490
|
FINISHED |
| Object |
JR East Niitsu Rolling Stock Plant
JR East Niitsu Rolling Stock Plant is a major railway rolling stock manufacturing and maintenance facility operated by East Japan Railway Company in Niigata Prefecture, Japan.
|
E538222
|
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 East Niitsu Rolling Stock Plant | Statement: [E231 series EMU, manufacturer, JR East Niitsu Rolling Stock Plant]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: JR East Niitsu Rolling Stock Plant Context triple: [E231 series EMU, manufacturer, JR East Niitsu Rolling Stock Plant]
-
A.
Kinki Sharyo
Kinki Sharyo is a Japanese manufacturer specializing in the design and production of railway vehicles, including metro and light rail trains used in systems worldwide.
-
B.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
-
C.
JR Freight
JR Freight is Japan’s primary rail freight operator, formed from the breakup and privatization of the former Japanese National Railways.
-
D.
JR East Nambu Line
The JR East Nambu Line is a commuter rail line in the Tokyo–Kawasaki area of Japan that connects multiple suburban communities and facilitates daily passenger transit across the Tama region.
-
E.
JR Tōkai
JR Tōkai is a major Japanese railway company that operates the Tōkaidō Shinkansen high-speed rail line and other rail services in central Japan.
- 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 East Niitsu Rolling Stock Plant Triple: [E231 series EMU, manufacturer, JR East Niitsu Rolling Stock Plant]
Generated description
JR East Niitsu Rolling Stock Plant is a major railway rolling stock manufacturing and maintenance facility operated by East Japan Railway Company in Niigata Prefecture, Japan.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: JR East Niitsu Rolling Stock Plant Target entity description: JR East Niitsu Rolling Stock Plant is a major railway rolling stock manufacturing and maintenance facility operated by East Japan Railway Company in Niigata Prefecture, Japan.
-
A.
Kinki Sharyo
Kinki Sharyo is a Japanese manufacturer specializing in the design and production of railway vehicles, including metro and light rail trains used in systems worldwide.
-
B.
Odakyu Electric Railway
Odakyu Electric Railway is a major private railway company in Japan that operates commuter and limited express train services connecting central Tokyo with surrounding suburban and regional areas.
-
C.
JR Freight
JR Freight is Japan’s primary rail freight operator, formed from the breakup and privatization of the former Japanese National Railways.
-
D.
JR East Nambu Line
The JR East Nambu Line is a commuter rail line in the Tokyo–Kawasaki area of Japan that connects multiple suburban communities and facilitates daily passenger transit across the Tama region.
-
E.
JR Tōkai
JR Tōkai is a major Japanese railway company that operates the Tōkaidō Shinkansen high-speed rail line and other rail services in central Japan.
- 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_69c008295c808190acfe78915e7d656a |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c02392f9f481908f7b80873589eff1 |
completed | March 22, 2026, 5:14 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c04dbbbe9081908d1915b898722c18 |
completed | March 22, 2026, 8:14 p.m. |
| NEDg | Description generation | batch_69c04ee0ee6c81908f5959bdba54a7ec |
completed | March 22, 2026, 8:19 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c04fb8ddfc8190a95b86972e659403 |
completed | March 22, 2026, 8:23 p.m. |
Created at: March 22, 2026, 3:43 p.m.