Triple
T14082218
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Madras Egmore |
E338894
|
entity |
| Predicate | formerName |
P65
|
FINISHED |
| Object | Madras Egmore railway station |
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: Madras Egmore railway station | Statement: [Madras Egmore, formerName, Madras Egmore railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Madras Egmore railway station Context triple: [Madras Egmore, formerName, Madras Egmore railway station]
-
A.
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.
-
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.
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.
-
D.
Velachery railway station
Velachery railway station is a major terminal on Chennai's Mass Rapid Transit System (MRTS) serving the Velachery neighborhood in south Chennai.
-
E.
Tambaram railway station
Tambaram railway station is a major suburban and long-distance rail hub in the Chennai metropolitan area, serving as a key terminus and transit point for commuters and regional travelers in Tamil Nadu, India.
- 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_69d81c687b0c819087fd9ed4198403f8 |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de5c5f759c81909bfd60ab35b0937b |
completed | April 14, 2026, 3:25 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fd3d027450819098f4f9be71451ec5 |
completed | May 8, 2026, 1:31 a.m. |
Created at: April 9, 2026, 10:21 p.m.