Triple
T19900645
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Delhi–Chennai line |
E478275
|
entity |
| Predicate | belongsToZone |
P6793
|
FINISHED |
| Object | Southern Railway zone |
—
|
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: Southern Railway zone | Statement: [Delhi–Chennai line, belongsToZone, Southern Railway zone]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southern Railway zone Context triple: [Delhi–Chennai line, belongsToZone, Southern Railway zone]
-
A.
Southern Railway zone
chosen
The Southern Railway zone is one of the major zones of Indian Railways, overseeing extensive rail operations across southern India including key hubs like Tiruchirappalli.
-
B.
South Western Railway zone
South Western Railway zone is a major railway administrative division of Indian Railways responsible for managing and operating train services and infrastructure primarily across the state of Karnataka and parts of neighboring regions.
-
C.
South Eastern Railway zone
The South Eastern Railway zone is one of the 19 railway zones of Indian Railways, headquartered in Garden Reach, Kolkata, and serving parts of West Bengal, Jharkhand, and Odisha.
-
D.
Northern Railway zone
The Northern Railway zone is one of the largest and oldest zones of Indian Railways, overseeing extensive rail operations across North India from its headquarters in New Delhi.
-
E.
East Coast Railway zone
The East Coast Railway zone is a major administrative division of Indian Railways responsible for managing rail operations across parts of Odisha, Andhra Pradesh, and Chhattisgarh along India’s eastern coast.
- 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_69d8e520682081909892916424699bd5 |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e65940cf8c8190b74e51635410e48a |
completed | April 20, 2026, 4:50 p.m. |
Created at: April 10, 2026, 1:52 p.m.