Triple
T19522814
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Esplanade, Kolkata |
E488442
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | Kolkata tram network |
—
|
NE NERFINISHED |
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: Kolkata tram network | Statement: [Esplanade, Kolkata, servedBy, Kolkata tram network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Kolkata tram network Context triple: [Esplanade, Kolkata, servedBy, Kolkata tram network]
-
A.
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.
-
B.
Kolkata Suburban Railway (Howrah–Sealdah sections)
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.
-
C.
Kolkata metropolitan transport region
The Kolkata metropolitan transport region is the broader urban area around Kolkata, India, overseen by a unified transport authority that plans and regulates public transportation across multiple surrounding towns and suburbs.
-
D.
Sealdah suburban corridor
The Sealdah suburban corridor is a major suburban railway network in the Kolkata metropolitan area, serving dense commuter traffic across multiple lines radiating from Sealdah station.
-
E.
Sealdah–Dankuni line
The Sealdah–Dankuni line is a suburban railway corridor in the Kolkata metropolitan area that connects Sealdah with Dankuni, serving as a key commuter route in West Bengal, India.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Kolkata tram network Target entity description: The Kolkata tram network is India's only remaining operational tram system, providing historic electric streetcar services across parts of the city of Kolkata.
-
A.
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.
-
B.
Kolkata Suburban Railway (Howrah–Sealdah sections)
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.
-
C.
Kolkata metropolitan transport region
The Kolkata metropolitan transport region is the broader urban area around Kolkata, India, overseen by a unified transport authority that plans and regulates public transportation across multiple surrounding towns and suburbs.
-
D.
Sealdah suburban corridor
The Sealdah suburban corridor is a major suburban railway network in the Kolkata metropolitan area, serving dense commuter traffic across multiple lines radiating from Sealdah station.
-
E.
Sealdah–Dankuni line
The Sealdah–Dankuni line is a suburban railway corridor in the Kolkata metropolitan area that connects Sealdah with Dankuni, serving as a key commuter route in West Bengal, India.
- F. None of above. chosen
Provenance (2 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_69d8e8da8bec819081f400199491ccc3 |
completed | April 10, 2026, 12:11 p.m. |
| NER | Named-entity recognition | batch_69e635a1ae9881908dfdcc94490c57aa |
completed | April 20, 2026, 2:18 p.m. |
Created at: April 10, 2026, 1:40 p.m.