Triple
T14882690
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Barrackpore railway station |
E350038
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Kolkata Suburban Railway |
E638620
|
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: Kolkata Suburban Railway | Statement: [Barrackpore railway station, partOf, Kolkata Suburban Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Kolkata Suburban Railway Context triple: [Barrackpore railway station, partOf, Kolkata Suburban Railway]
-
A.
Kolkata Suburban Railway (Howrah–Sealdah sections)
chosen
The Kolkata Suburban Railway (Howrah–Sealdah sections) is a major suburban rail system serving the Kolkata metropolitan area, connecting its key terminals at Howrah and Sealdah with extensive surrounding suburbs.
-
B.
Kolkata Metro
Kolkata Metro is India’s oldest rapid transit system, serving as a major urban rail network for the city of Kolkata and its surrounding areas.
-
C.
Mumbai Suburban Railway
The Mumbai Suburban Railway is a high-capacity commuter rail network that forms the backbone of public transport in the Mumbai metropolitan region, carrying millions of passengers daily across its extensive routes.
-
D.
Delhi suburban railway
The Delhi suburban railway is a commuter rail network serving Delhi and its surrounding regions, providing frequent local train services that connect residential, commercial, and industrial areas across the National Capital Region.
-
E.
Sealdah–Ranaghat line
The Sealdah–Ranaghat line is a major suburban railway corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station with Ranaghat and serving numerous densely populated towns along the route.
- 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_69d822ee4f408190b6ac3b2fa434f0df |
completed | April 9, 2026, 10:06 p.m. |
| NER | Named-entity recognition | batch_69ded5e7c0e48190af2d68a71130585c |
completed | April 15, 2026, 12:03 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fe6b5af8208190a35451477ea20b03 |
completed | May 8, 2026, 11:01 p.m. |
Created at: April 10, 2026, 1:56 a.m.