Triple
T19056995
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Vande Bharat Express |
E466422
|
entity |
| Predicate | manufacturer |
P490
|
FINISHED |
| Object | Indian Railways production units |
—
|
NE NERFINISHED |
How this triple was built (2 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: Indian Railways production units | Statement: [Vande Bharat Express, manufacturer, Indian Railways production units]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Indian Railways production units Context triple: [Vande Bharat Express, manufacturer, Indian Railways production units]
-
A.
Production units of Indian Railways
chosen
The Production units of Indian Railways are specialized manufacturing and maintenance facilities that build, overhaul, and upgrade locomotives, coaches, wagons, and other rolling stock for the national railway system.
-
B.
Kanchrapara Railway Workshop
Kanchrapara Railway Workshop is a major Indian Railways maintenance and repair facility located in Kanchrapara, West Bengal, known for overhauling locomotives, coaches, and other rolling stock.
-
C.
Indian Railways Service of Engineers
The Indian Railways Service of Engineers is a prestigious Group ‘A’ central engineering cadre responsible for planning, constructing, and maintaining the civil engineering infrastructure of Indian Railways.
-
D.
Tata Engineering and Locomotive Company
Tata Engineering and Locomotive Company was the original name of Tata Motors, a major Indian automotive manufacturer known for producing commercial and passenger vehicles.
-
E.
Jagadhri railway workshop
Jagadhri railway workshop is a major Indian Railways facility in Haryana dedicated to the maintenance and repair of railway rolling stock and related infrastructure.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8dd040fb881909af2a964f65ad208 |
completed | April 10, 2026, 11:20 a.m. |
| NER | Named-entity recognition | batch_69e5dc067f788190b3b149dfee370435 |
completed | April 20, 2026, 7:55 a.m. |
Created at: April 10, 2026, 12:03 p.m.