Triple
T13661293
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Salem railway division |
E326999
|
entity |
| Predicate | railwayZoneHeadquarters |
P31350
|
FINISHED |
| Object | Chennai (Southern Railway zone HQ) |
E67688
|
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: Chennai (Southern Railway zone HQ) | Statement: [Salem railway division, railwayZoneHeadquarters, Chennai (Southern Railway zone HQ)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chennai (Southern Railway zone HQ) Context triple: [Salem railway division, railwayZoneHeadquarters, Chennai (Southern Railway zone HQ)]
-
A.
Chennai railway division
Chennai railway division is a major administrative division of Indian Railways responsible for operating and managing railway services in and around the Chennai region.
-
B.
Chennai Egmore railway station
chosen
Chennai Egmore railway station is one of the major railway terminals in Chennai, India, serving as a key hub for regional and long-distance trains, especially to southern Tamil Nadu.
-
C.
Chennai Central railway station
Chennai Central railway station is a major historic railway terminus and one of the busiest transport hubs in South India, serving as a key gateway to the city of Chennai and beyond.
-
D.
Tiruvarur Junction
Tiruvarur Junction is a key railway station and transport hub in the town of Tiruvarur in Tamil Nadu, India, connecting several regional rail lines.
-
E.
Madurai railway division
Madurai railway division is an administrative division of Indian Railways responsible for managing railway operations and infrastructure in and around Madurai in the state of Tamil Nadu.
- 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_69d8076d8270819092afc2f0e9c359a8 |
completed | April 9, 2026, 8:09 p.m. |
| NER | Named-entity recognition | batch_69dbc620df208190afaccf3ddd10aa60 |
completed | April 12, 2026, 4:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f78b08d27c8190badc612c26423c0e |
completed | May 3, 2026, 5:51 p.m. |
Created at: April 9, 2026, 9:52 p.m.