Triple
T14047388
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Vandalur |
E337992
|
entity |
| Predicate | nearestMajorRailHub |
P82238
|
FINISHED |
| Object | Tambaram railway station |
E1075208
|
NE FINISHED |
How this triple was built (3 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: Tambaram railway station | Statement: [Vandalur, nearestMajorRailHub, Tambaram railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tambaram railway station Context triple: [Vandalur, nearestMajorRailHub, Tambaram railway station]
-
A.
Tambaram railway station
chosen
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.
-
B.
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.
-
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.
Chepauk MRTS station
Chepauk MRTS station is an elevated suburban railway station in Chennai, India, serving the Mass Rapid Transit System near the Chepauk area and its prominent institutions.
-
E.
Kodambakkam railway station
Kodambakkam railway station is a suburban rail stop in Chennai, India, serving the Kodambakkam neighborhood on the city’s Mass Rapid Transit and suburban railway network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: nearestMajorRailHub Context triple: [Vandalur, nearestMajorRailHub, Tambaram railway station]
-
A.
nearestMajorTransportHub
Indicates that one location is the closest significant transportation center (such as a major train station, airport, or bus terminal) to another location.
-
B.
nearestMajorRailwayJunction
chosen
Indicates the closest significant railway junction in terms of distance from a given location or entity.
-
C.
nearestRailwayTerminus
Indicates that one location is the closest railway terminus to another specified place.
-
D.
nearestMajorMetro
Indicates the relationship where a given location is associated with the closest large metropolitan area to it.
-
E.
nearestPassengerRailStation
Indicates that one entity is the closest passenger rail station in distance to another entity.
- F. None of above.
Provenance (4 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_69d81c664e48819088cbd8f433aeffe5 |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de3c88b5e48190b0f0149102c08992 |
completed | April 14, 2026, 1:09 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fcdefaabd0819098870522a6ce850c |
completed | May 7, 2026, 6:50 p.m. |
| PD | Predicate disambiguation | batch_69de05ab36b48190920efb1869bdb1fe |
completed | April 14, 2026, 9:15 a.m. |
Created at: April 9, 2026, 10:20 p.m.