Triple
T4221766
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Agra Fort railway station |
E94355
|
entity |
| Predicate | operatedBy |
P86
|
FINISHED |
| Object | North Central Railway zone |
E119673
|
NE FINISHED |
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: North Central Railway zone | Statement: [Agra Fort railway station, operatedBy, North Central Railway zone]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North Central Railway zone Context triple: [Agra Fort railway station, operatedBy, North Central Railway zone]
-
A.
North Central Railway zone
chosen
The North Central Railway zone is one of the 19 railway zones of Indian Railways, headquartered at Prayagraj, and is a major rail network serving parts of Uttar Pradesh, Madhya Pradesh, Rajasthan, and Haryana.
-
B.
West Central Railway zone
West Central Railway zone is one of the zones of Indian Railways, headquartered in Jabalpur, that manages and operates rail services across parts of central India.
-
C.
South Central Railway zone
The South Central Railway zone is one of the 19 railway zones of Indian Railways, headquartered in Secunderabad, that oversees and operates rail services across parts of Telangana, Andhra Pradesh, Maharashtra, and neighboring regions.
-
D.
East Central Railway zone
The East Central Railway zone is one of the 19 railway zones in India, headquartered at Hajipur in Bihar, responsible for operating and managing rail transport across parts of Bihar, Jharkhand, Uttar Pradesh, and Madhya Pradesh.
-
E.
Western Railway zone
The Western Railway zone is one of the major zones of Indian Railways, overseeing rail operations across parts of western India including the states of Gujarat, Maharashtra, and Madhya Pradesh.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69b3451997e08190851db4a9a588837d |
completed | March 12, 2026, 10:58 p.m. |
| NER | Named-entity recognition | batch_69b34e0e06d881908e3aa8ef1a90c010 |
completed | March 12, 2026, 11:36 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b59642720c81908e68a56b3d30eef9 |
completed | March 14, 2026, 5:09 p.m. |
Created at: March 12, 2026, 11:04 p.m.