Triple

T35507411

Position	Surface form	Disambiguated ID	Type / Status
Subject	Joka, Kolkata	`E1026186`	entity
Predicate	metroExtensionProject	`P50445`	FINISHED
Object	Joka–Esplanade Metro corridor The Joka–Esplanade Metro corridor is a major under-construction rapid transit line in Kolkata intended to connect the southern suburb of Joka with the central business district around Esplanade.	`E2144585`	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: Joka–Esplanade Metro corridor | Statement: [Joka, Kolkata, metroExtensionProject, Joka–Esplanade Metro corridor]

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: Joka–Esplanade Metro corridor
Triple: [Joka, Kolkata, metroExtensionProject, Joka–Esplanade Metro corridor]

Generated description

The Joka–Esplanade Metro corridor is a major under-construction rapid transit line in Kolkata intended to connect the southern suburb of Joka with the central business district around Esplanade.

PD Predicate disambiguation gpt-5-mini-2025-08-07

Target predicate: metroExtensionProject
Context triple: [Joka, Kolkata, metroExtensionProject, Joka–Esplanade Metro corridor]

A. metro
Indicates a relationship where an entity is associated with, located in, or served by a metropolitan transit system (such as a subway or urban rail network).
B. openedAsMetroExtension
Indicates that a transportation line, station, or segment was inaugurated specifically as part of an extension to an existing metro system.
C. lightRailExpansion
Indicates the process or plan of extending an existing light rail transit system to cover additional areas or routes.
D. plannedExtensionTo
Indicates that one entity is intended or scheduled to be extended, expanded, or continued by another entity in the future.
E. expansionProject chosen
Indicates a project whose primary purpose is to enlarge, extend, or increase the capacity, scope, or reach of something.
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_69f76dfd61208190b93ec6dc439cab41`	completed	May 3, 2026, 3:47 p.m.
NER	Named-entity recognition	`batch_69f7b0e5744c8190a22c1e1d6fcfa466`	completed	May 3, 2026, 8:32 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a384a34abbc81909f720d8e5f0464c4`	completed	June 21, 2026, 8:31 p.m.
NEDg	Description generation	`batch_6a384abe08a481909ea55117e7f7d120`	completed	June 21, 2026, 8:34 p.m.
NED2	Entity disambiguation (via description)	`batch_6a384b6c05ec8190b41e56814b5bf7c0`	completed	June 21, 2026, 8:37 p.m.
PD	Predicate disambiguation	`batch_69f7ab70d034819080295628497d8582`	completed	May 3, 2026, 8:09 p.m.

Created at: May 3, 2026, 4:04 p.m.