Triple

T20323488

Position	Surface form	Disambiguated ID	Type / Status
Subject	Riga–Tukums railway	`E492268`	entity
Predicate	hasStation	`P35`	FINISHED
Object	Tukums 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: Tukums railway station | Statement: [Riga–Tukums railway, hasStation, Tukums railway station]

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

Target entity: Tukums railway station
Context triple: [Riga–Tukums railway, hasStation, Tukums railway station]

A. Tua railway station
Tua railway station is a historic Portuguese railway terminus located at the confluence of the Tua and Douro rivers, known for serving as a gateway to the scenic Douro Valley region.
B. Tuni railway station
Tuni railway station is a key rail transit point serving the town of Tuni in Andhra Pradesh, India, connecting it to major cities and regional destinations.
C. Tynda railway station
Tynda railway station is a key junction on Russia’s Baikal–Amur Mainline in Amur Oblast, serving as an important regional hub for passenger and freight rail traffic.
D. Turrella railway station
Turrella railway station is a suburban train station in Sydney, Australia, serving the local community on the T8 Airport & South Line.
E. Tondu railway station
Tondu railway station is a small railway stop serving the village of Tondu in Bridgend County Borough, Wales, on the Maesteg Line.
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: Tukums railway station
Target entity description: Tukums railway station is a regional rail station in the town of Tukums, Latvia, serving as a key terminus and transit point on the rail line connecting it with the capital city, Riga.

A. Tua railway station
Tua railway station is a historic Portuguese railway terminus located at the confluence of the Tua and Douro rivers, known for serving as a gateway to the scenic Douro Valley region.
B. Tuni railway station
Tuni railway station is a key rail transit point serving the town of Tuni in Andhra Pradesh, India, connecting it to major cities and regional destinations.
C. Tynda railway station
Tynda railway station is a key junction on Russia’s Baikal–Amur Mainline in Amur Oblast, serving as an important regional hub for passenger and freight rail traffic.
D. Turrella railway station
Turrella railway station is a suburban train station in Sydney, Australia, serving the local community on the T8 Airport & South Line.
E. Tondu railway station
Tondu railway station is a small railway stop serving the village of Tondu in Bridgend County Borough, Wales, on the Maesteg Line.
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_69e0b4a0134081909113563e1c3ba68a`	completed	April 16, 2026, 10:06 a.m.
NER	Named-entity recognition	`batch_69e6778d95dc81909b1c87d26b5d3a33`	completed	April 20, 2026, 6:59 p.m.

Created at: April 16, 2026, 11:21 a.m.