Triple
T13875495
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Musashino Line |
E333570
|
entity |
| Predicate | rollingStockUsed |
P5426
|
FINISHED |
| Object |
JR East E231-500 series EMU
The JR East E231-500 series EMU is a Japanese commuter electric multiple unit train type operated by East Japan Railway Company, known for its high-capacity, high-frequency service in the Tokyo metropolitan area.
|
E1072317
|
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 E231-500 series EMU | Statement: [Musashino Line, rollingStockUsed, JR East E231-500 series EMU]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: JR East E231-500 series EMU Context triple: [Musashino Line, rollingStockUsed, JR East E231-500 series EMU]
-
A.
JR East 205 series
The JR East 205 series is a Japanese electric multiple unit commuter train type introduced in the 1980s and widely used on various urban and suburban lines in the Tokyo area.
-
B.
JR East 209 series
The JR East 209 series is a Japanese commuter electric multiple unit train type introduced in the 1990s for high-frequency urban and suburban services in the Tokyo area.
-
C.
Tokyu 5080 series EMU
The Tokyu 5080 series EMU is a Japanese electric multiple unit train operated by Tokyu Corporation, primarily used for commuter services in the Tokyo area with through-running onto various subway and interurban lines.
-
D.
JR West 225 series EMU
The JR West 225 series EMU is a modern Japanese electric multiple unit train designed for high-speed, high-frequency commuter and suburban services with enhanced safety and passenger comfort features.
-
E.
JR West 321 series EMU
The JR West 321 series EMU is a Japanese commuter electric multiple unit train operated by West Japan Railway Company, primarily used for high-frequency urban and suburban services in the Kansai region.
- 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 E231-500 series EMU Triple: [Musashino Line, rollingStockUsed, JR East E231-500 series EMU]
Generated description
The JR East E231-500 series EMU is a Japanese commuter electric multiple unit train type operated by East Japan Railway Company, known for its high-capacity, high-frequency service in the Tokyo metropolitan area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: JR East E231-500 series EMU Target entity description: The JR East E231-500 series EMU is a Japanese commuter electric multiple unit train type operated by East Japan Railway Company, known for its high-capacity, high-frequency service in the Tokyo metropolitan area.
-
A.
JR East 205 series
The JR East 205 series is a Japanese electric multiple unit commuter train type introduced in the 1980s and widely used on various urban and suburban lines in the Tokyo area.
-
B.
JR East 209 series
The JR East 209 series is a Japanese commuter electric multiple unit train type introduced in the 1990s for high-frequency urban and suburban services in the Tokyo area.
-
C.
Tokyu 5080 series EMU
The Tokyu 5080 series EMU is a Japanese electric multiple unit train operated by Tokyu Corporation, primarily used for commuter services in the Tokyo area with through-running onto various subway and interurban lines.
-
D.
JR West 225 series EMU
The JR West 225 series EMU is a modern Japanese electric multiple unit train designed for high-speed, high-frequency commuter and suburban services with enhanced safety and passenger comfort features.
-
E.
JR West 321 series EMU
The JR West 321 series EMU is a Japanese commuter electric multiple unit train operated by West Japan Railway Company, primarily used for high-frequency urban and suburban services in the Kansai region.
- 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_69d81c5ced9c8190b0e9bcc6effe5959 |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de0be556708190bbcf0b3583f677e3 |
completed | April 14, 2026, 9:41 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fba1bdb1a08190abaf4d9ceb04525a |
completed | May 6, 2026, 8:17 p.m. |
| NEDg | Description generation | batch_69fba785e17c819081d09f7891914665 |
completed | May 6, 2026, 8:41 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69fba82ca04c8190863932895fa8212a |
completed | May 6, 2026, 8:44 p.m. |
Created at: April 9, 2026, 10:15 p.m.