Triple
T13998395
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Beach railway station, Chennai |
E336759
|
entity |
| Predicate | category |
P87
|
FINISHED |
| Object | Chennai Suburban Railway stations |
E343310
|
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 Suburban Railway stations | Statement: [Beach railway station, Chennai, category, Chennai Suburban Railway stations]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chennai Suburban Railway stations Context triple: [Beach railway station, Chennai, category, Chennai Suburban Railway stations]
-
A.
Chennai Suburban Railway
chosen
Chennai Suburban Railway is a major commuter rail network serving the greater Chennai metropolitan area, providing high-frequency train services that connect the city with its surrounding suburbs.
-
B.
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.
-
C.
Chennai Egmore railway station
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.
-
D.
Vellore Cantonment railway station
Vellore Cantonment railway station is a key rail hub serving the city of Vellore in Tamil Nadu, India, connecting it to regional and long-distance destinations.
-
E.
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.
- 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_69d81c645c5c8190b1fd16a285a1b78a |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de2eb68ba88190bfaf10777d607bf3 |
completed | April 14, 2026, 12:10 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fbac9f1f6c8190af7ddac920661bd5 |
completed | May 6, 2026, 9:03 p.m. |
Created at: April 9, 2026, 10:19 p.m.