Triple
T14624551
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chennai Suburban Railway |
E343310
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Southern Railway zone suburban systems |
E326576
|
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: Southern Railway zone suburban systems | Statement: [Chennai Suburban Railway, partOf, Southern Railway zone suburban systems]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southern Railway zone suburban systems Context triple: [Chennai Suburban Railway, partOf, Southern Railway zone suburban systems]
-
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 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.
-
C.
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.
-
D.
South Coast Railway zone
The South Coast Railway zone is a division of Indian Railways responsible for managing and operating rail services across parts of the southeastern coastal region of India.
-
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 (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_69d822dffc3c8190aa173b90761bffda |
completed | April 9, 2026, 10:06 p.m. |
| NER | Named-entity recognition | batch_69deb468acc4819083b7e818d5cec809 |
completed | April 14, 2026, 9:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fda92a6b9c8190bdb220444cfbe34a |
completed | May 8, 2026, 9:13 a.m. |
Created at: April 10, 2026, 1:26 a.m.