Triple

T22215147

Position	Surface form	Disambiguated ID	Type / Status
Subject	Kelani Valley Line	`E549055`	entity
Predicate	hasIntermediateStation	`P24280`	FINISHED
Object	Kosgama railway station	`—`	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: Kosgama railway station | Statement: [Kelani Valley Line, hasIntermediateStation, Kosgama railway station]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Kosgama railway station
Context triple: [Kelani Valley Line, hasIntermediateStation, Kosgama railway station]

A. Senaki railway station
Senaki railway station is a regional rail transport hub in western Georgia that serves passenger and freight trains on the country’s main railway network.
B. Kogarah railway station
Kogarah railway station is a suburban train station in Sydney, New South Wales, serving the Kogarah area on the Illawarra line.
C. Urunga railway station
Urunga railway station is a regional train station in New South Wales, Australia, serving the coastal town of Urunga on the North Coast railway line.
D. Kiesen railway station
Kiesen railway station is a local Swiss rail stop in the municipality of Kiesen, providing regional train connections within the canton of Bern.
E. Nagad Railway Station
Nagad Railway Station is a major railway terminal in Djibouti City that serves as the primary endpoint and international gateway for trains arriving from Ethiopia on the Addis Ababa–Djibouti Railway.
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: Kosgama railway station
Target entity description: Kosgama railway station is a local stop on Sri Lanka’s Kelani Valley railway line, serving the town of Kosgama and its surrounding area.

A. Senaki railway station
Senaki railway station is a regional rail transport hub in western Georgia that serves passenger and freight trains on the country’s main railway network.
B. Kogarah railway station
Kogarah railway station is a suburban train station in Sydney, New South Wales, serving the Kogarah area on the Illawarra line.
C. Urunga railway station
Urunga railway station is a regional train station in New South Wales, Australia, serving the coastal town of Urunga on the North Coast railway line.
D. Kiesen railway station
Kiesen railway station is a local Swiss rail stop in the municipality of Kiesen, providing regional train connections within the canton of Bern.
E. Nagad Railway Station
Nagad Railway Station is a major railway terminal in Djibouti City that serves as the primary endpoint and international gateway for trains arriving from Ethiopia on the Addis Ababa–Djibouti Railway.
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_69e11e3f7e04819089806d81d5ac431e`	completed	April 16, 2026, 5:37 p.m.
NER	Named-entity recognition	`batch_69f12b8bdfbc8190832809edbe8b7c27`	completed	April 28, 2026, 9:50 p.m.

Created at: April 16, 2026, 8:37 p.m.