Triple

T22231131

Position	Surface form	Disambiguated ID	Type / Status
Subject	Puttalam Line	`E549467`	entity
Predicate	hasIntermediateStation	`P24280`	FINISHED
Object	Negombo 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: Negombo railway station | Statement: [Puttalam Line, hasIntermediateStation, Negombo railway station]

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

Target entity: Negombo railway station
Context triple: [Puttalam Line, hasIntermediateStation, Negombo 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. 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.
C. Matunga railway station
Matunga railway station is a suburban railway station on Mumbai's Central line, serving the Matunga neighborhood and daily commuters in the city.
D. Mungaoli railway station
Mungaoli railway station is a local rail transit point serving the town of Mungaoli and surrounding areas in Ashoknagar district, Madhya Pradesh, India.
E. Bulli Railway Station
Bulli Railway Station is a suburban train station on the South Coast line in New South Wales, Australia, serving the coastal town of Bulli near Wollongong.
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: Negombo railway station
Target entity description: Negombo railway station is a key passenger railway station in the coastal city of Negombo, Sri Lanka, serving as an important stop on the route between Colombo and the island’s northwestern region.

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. 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.
C. Matunga railway station
Matunga railway station is a suburban railway station on Mumbai's Central line, serving the Matunga neighborhood and daily commuters in the city.
D. Mungaoli railway station
Mungaoli railway station is a local rail transit point serving the town of Mungaoli and surrounding areas in Ashoknagar district, Madhya Pradesh, India.
E. Bulli Railway Station
Bulli Railway Station is a suburban train station on the South Coast line in New South Wales, Australia, serving the coastal town of Bulli near Wollongong.
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_69e11e4102b881909cf47d3768e25c19`	completed	April 16, 2026, 5:37 p.m.
NER	Named-entity recognition	`batch_69f12bf2a26c81908aaf614d7c75e219`	completed	April 28, 2026, 9:51 p.m.

Created at: April 16, 2026, 8:38 p.m.