Triple
T5777041
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tokyo Metro 7000 series |
E127468
|
entity |
| Predicate | manufacturer |
P490
|
FINISHED |
| Object |
Nippon Sharyo
Nippon Sharyo is a Japanese rolling stock manufacturer known for producing railway vehicles for domestic operators and international markets.
|
E554488
|
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: Nippon Sharyo | Statement: [Tokyo Metro 7000 series, manufacturer, Nippon Sharyo]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nippon Sharyo Context triple: [Tokyo Metro 7000 series, manufacturer, Nippon Sharyo]
-
A.
Tokyu Car Corporation
Tokyu Car Corporation was a Japanese rolling stock manufacturer known for producing a wide range of electric multiple units, commuter trains, and other railway vehicles for domestic and international operators.
-
B.
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.
-
C.
Tokyu Corporation
Tokyu Corporation is a major Japanese private railway and real estate company based in Tokyo, known for operating extensive rail networks and developing commercial and residential areas, particularly around Shibuya.
-
D.
Hitachi Rail
Hitachi Rail is a global rail transport and engineering company that designs, manufactures, and maintains trains and railway systems for urban, intercity, and high-speed networks.
-
E.
Shinkansen Holding Corporation
Shinkansen Holding Corporation is a Japanese company established to own and manage the high-speed Shinkansen railway assets following the breakup and privatization of Japanese National Railways.
- 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: Nippon Sharyo Triple: [Tokyo Metro 7000 series, manufacturer, Nippon Sharyo]
Generated description
Nippon Sharyo is a Japanese rolling stock manufacturer known for producing railway vehicles for domestic operators and international markets.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Nippon Sharyo Target entity description: Nippon Sharyo is a Japanese rolling stock manufacturer known for producing railway vehicles for domestic operators and international markets.
-
A.
Tokyu Car Corporation
Tokyu Car Corporation was a Japanese rolling stock manufacturer known for producing a wide range of electric multiple units, commuter trains, and other railway vehicles for domestic and international operators.
-
B.
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.
-
C.
Tokyu Corporation
Tokyu Corporation is a major Japanese private railway and real estate company based in Tokyo, known for operating extensive rail networks and developing commercial and residential areas, particularly around Shibuya.
-
D.
Hitachi Rail
Hitachi Rail is a global rail transport and engineering company that designs, manufactures, and maintains trains and railway systems for urban, intercity, and high-speed networks.
-
E.
Shinkansen Holding Corporation
Shinkansen Holding Corporation is a Japanese company established to own and manage the high-speed Shinkansen railway assets following the breakup and privatization of Japanese National Railways.
- 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_69c008361fa88190aefa4dc41b051e7f |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c029dfccdc8190bed937f493e42aed |
completed | March 22, 2026, 5:41 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c0b0cbc4188190b40cf403e43411fa |
completed | March 23, 2026, 3:17 a.m. |
| NEDg | Description generation | batch_69c0b5067a08819099ef4caf08ca6f33 |
completed | March 23, 2026, 3:35 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c0b55a971c819091aaf9817776a826 |
completed | March 23, 2026, 3:36 a.m. |
Created at: March 22, 2026, 3:50 p.m.