Triple

T20530676

Position	Surface form	Disambiguated ID	Type / Status
Subject	Los Angeles–Seattle rail corridor	`E504057`	entity
Predicate	majorStation	`P1071`	FINISHED
Object	Klamath Falls 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: Klamath Falls station | Statement: [Los Angeles–Seattle rail corridor, majorStation, Klamath Falls station]

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

Target entity: Klamath Falls station
Context triple: [Los Angeles–Seattle rail corridor, majorStation, Klamath Falls station]

A. Tualatin station
Tualatin station is a commuter rail stop in Tualatin, Oregon, serving as one of the stations on TriMet’s WES Commuter Rail line in the Portland metropolitan area.
B. Creel station
Creel station is a railway stop in the town of Creel, Chihuahua, Mexico, best known as a key passenger station on the scenic Ferrocarril Chihuahua al Pacífico route through the Copper Canyon region.
C. Oregon station
Oregon station is a subway stop on Philadelphia's SEPTA Broad Street Line serving the South Philadelphia neighborhood near Oregon Avenue.
D. Oregon-Washington Station
Oregon-Washington Station was the original name of Seattle’s historic Union Station, a major early 20th-century railroad terminal in the city.
E. Creston Amtrak station
Creston Amtrak station is a passenger rail station in Creston, Iowa, served by Amtrak’s long-distance trains.
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: Klamath Falls station
Target entity description: Klamath Falls station is a key Amtrak passenger rail stop in Klamath Falls, Oregon, serving long-distance trains along the West Coast between California and the Pacific Northwest.

A. Tualatin station
Tualatin station is a commuter rail stop in Tualatin, Oregon, serving as one of the stations on TriMet’s WES Commuter Rail line in the Portland metropolitan area.
B. Creel station
Creel station is a railway stop in the town of Creel, Chihuahua, Mexico, best known as a key passenger station on the scenic Ferrocarril Chihuahua al Pacífico route through the Copper Canyon region.
C. Oregon station
Oregon station is a subway stop on Philadelphia's SEPTA Broad Street Line serving the South Philadelphia neighborhood near Oregon Avenue.
D. Oregon-Washington Station
Oregon-Washington Station was the original name of Seattle’s historic Union Station, a major early 20th-century railroad terminal in the city.
E. Creston Amtrak station
Creston Amtrak station is a passenger rail station in Creston, Iowa, served by Amtrak’s long-distance trains.
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_69e0b4b3a6e08190ae663701f50fab8e`	completed	April 16, 2026, 10:06 a.m.
NER	Named-entity recognition	`batch_69e6a06b923c81908ba24be6645a7c61`	completed	April 20, 2026, 9:53 p.m.

Created at: April 16, 2026, 11:37 a.m.