Triple
T8352295
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Domjur |
E196589
|
entity |
| Predicate | transportAuthorityJurisdiction |
P14467
|
FINISHED |
| Object |
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.
|
E727501
|
NE FINISHED |
How this triple was built (5 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 metropolitan transport region | Statement: [Domjur, transportAuthorityJurisdiction, Kolkata metropolitan transport region]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Kolkata metropolitan transport region Context triple: [Domjur, transportAuthorityJurisdiction, Kolkata metropolitan transport region]
-
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.
Delhi Metro Rail Corporation
Delhi Metro Rail Corporation is the state-owned company responsible for planning, constructing, and operating the Delhi Metro rapid transit system in India.
-
C.
Uttar Pradesh Metro Rail Corporation Limited
Uttar Pradesh Metro Rail Corporation Limited is a state-owned public transport agency responsible for developing, operating, and maintaining metro rail systems in cities across Uttar Pradesh, India.
-
D.
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.
-
E.
Mumbai Metro
Mumbai Metro is a rapid transit system serving the Mumbai metropolitan region, designed to alleviate congestion and complement the city’s suburban railway network.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Kolkata metropolitan transport region Triple: [Domjur, transportAuthorityJurisdiction, Kolkata metropolitan transport region]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Kolkata metropolitan transport region Target entity description: 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.
-
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.
Delhi Metro Rail Corporation
Delhi Metro Rail Corporation is the state-owned company responsible for planning, constructing, and operating the Delhi Metro rapid transit system in India.
-
C.
Uttar Pradesh Metro Rail Corporation Limited
Uttar Pradesh Metro Rail Corporation Limited is a state-owned public transport agency responsible for developing, operating, and maintaining metro rail systems in cities across Uttar Pradesh, India.
-
D.
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.
-
E.
Mumbai Metro
Mumbai Metro is a rapid transit system serving the Mumbai metropolitan region, designed to alleviate congestion and complement the city’s suburban railway network.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: transportAuthorityJurisdiction Context triple: [Domjur, transportAuthorityJurisdiction, Kolkata metropolitan transport region]
-
A.
hasTransportAuthority
Indicates that one entity holds official power or responsibility to manage, regulate, or oversee transportation services or infrastructure for another entity or area.
-
B.
publicTransportAuthorityRelation
chosen
Indicates that one entity serves as the public transport authority responsible for overseeing, regulating, or managing public transportation services related to another entity.
-
C.
organizationJurisdiction
Indicates the legal or administrative area (such as a country, state, or city) within whose authority an organization operates or is governed.
-
D.
transportationRegion
Indicates that one entity serves as, or is associated with, a geographic region relevant to the transportation activities or coverage of another entity.
-
E.
hasPublicTransportAgency
Indicates that a place or transport system is served, managed, or overseen by a specific public transportation agency.
- F. None of above.
Provenance (6 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_69ca82f08b348190bfb7881944bbff6f |
completed | March 30, 2026, 2:04 p.m. |
| NER | Named-entity recognition | batch_69cb80460f048190aa298ddffde1047d |
completed | March 31, 2026, 8:05 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cdc75623488190be3303f5e75784e8 |
completed | April 2, 2026, 1:33 a.m. |
| NEDg | Description generation | batch_69cdcc86626c8190a4206feedea24b41 |
completed | April 2, 2026, 1:55 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69cdcde02e088190be8220f7d18d6700 |
completed | April 2, 2026, 2:01 a.m. |
| PD | Predicate disambiguation | batch_69cb70c6d0ec8190acf273b0e007b51a |
completed | March 31, 2026, 6:59 a.m. |
Created at: March 30, 2026, 5:59 p.m.