Triple

T22231139

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

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

Target entity: Waikkala railway station
Context triple: [Puttalam Line, hasIntermediateStation, Waikkala railway station]

A. Pasila railway station
Pasila railway station is a major rail hub in Helsinki, Finland, serving as a key junction for local and long-distance trains just north of the city center.
B. Taumarunui railway station
Taumarunui railway station is a historic rail stop in New Zealand’s central North Island that once served as an important junction on the North Island Main Trunk line.
C. 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.
D. Pouhala rail station
Pouhala rail station is a Skyline rail transit stop in Waipahu, Hawaii, providing local residents with access to Honolulu’s elevated rail system.
E. Poroy station
Poroy station is a railway station near Cusco, Peru, serving as a key departure point for trains traveling to Machu Picchu and the Sacred Valley.
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: Waikkala railway station
Target entity description: Waikkala railway station is a small local train stop in Waikkala, Sri Lanka, serving passengers along the coastal rail route between Colombo and Puttalam.

A. Pasila railway station
Pasila railway station is a major rail hub in Helsinki, Finland, serving as a key junction for local and long-distance trains just north of the city center.
B. Taumarunui railway station
Taumarunui railway station is a historic rail stop in New Zealand’s central North Island that once served as an important junction on the North Island Main Trunk line.
C. 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.
D. Pouhala rail station
Pouhala rail station is a Skyline rail transit stop in Waipahu, Hawaii, providing local residents with access to Honolulu’s elevated rail system.
E. Poroy station
Poroy station is a railway station near Cusco, Peru, serving as a key departure point for trains traveling to Machu Picchu and the Sacred Valley.
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.