Triple

T1403883

Position	Surface form	Disambiguated ID	Type / Status
Subject	Jamestown, California	`E31645`	entity
Predicate	transportHistory	`P11026`	FINISHED
Object	Sierra Railway of California The Sierra Railway of California is a historic short-line railroad famed for serving the Gold Country region and for its frequent use as a filming location in Western movies and television shows.	`E161322`	NE FINISHED

How this triple was built (4 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: Sierra Railway of California | Statement: [Jamestown, California, transportHistory, Sierra Railway of California]

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

Target entity: Sierra Railway of California
Context triple: [Jamestown, California, transportHistory, Sierra Railway of California]

A. Sacramento Southern Railroad
The Sacramento Southern Railroad is a heritage railway in Sacramento, California, offering excursion train rides along the Sacramento River as part of the California State Railroad Museum’s operations.
B. Virginia and Truckee Railroad
The Virginia and Truckee Railroad was a historic 19th-century short-line railway in Nevada that played a crucial role in transporting ore, supplies, and passengers for the Comstock Lode mining boom.
C. Oregon Coast Scenic Railroad
The Oregon Coast Scenic Railroad is a heritage railway offering scenic excursions along the Oregon coast using historic steam and diesel locomotives.
D. Central Pacific Railroad
The Central Pacific Railroad was a major 19th-century American railroad company that built the western portion of the First Transcontinental Railroad, linking California to the eastern United States and transforming transportation and commerce.
E. California State Railroad Museum
The California State Railroad Museum is a major railway history museum in Sacramento showcasing historic locomotives, rolling stock, and exhibits on the development of railroads in California and the American West.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NEDg Description generation gpt-5.1

Instruction

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Input

Entity: Sierra Railway of California
Triple: [Jamestown, California, transportHistory, Sierra Railway of California]

Generated description

The Sierra Railway of California is a historic short-line railroad famed for serving the Gold Country region and for its frequent use as a filming location in Western movies and television shows.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Sierra Railway of California
Target entity description: The Sierra Railway of California is a historic short-line railroad famed for serving the Gold Country region and for its frequent use as a filming location in Western movies and television shows.

A. Sacramento Southern Railroad
The Sacramento Southern Railroad is a heritage railway in Sacramento, California, offering excursion train rides along the Sacramento River as part of the California State Railroad Museum’s operations.
B. Virginia and Truckee Railroad
The Virginia and Truckee Railroad was a historic 19th-century short-line railway in Nevada that played a crucial role in transporting ore, supplies, and passengers for the Comstock Lode mining boom.
C. Oregon Coast Scenic Railroad
The Oregon Coast Scenic Railroad is a heritage railway offering scenic excursions along the Oregon coast using historic steam and diesel locomotives.
D. Central Pacific Railroad
The Central Pacific Railroad was a major 19th-century American railroad company that built the western portion of the First Transcontinental Railroad, linking California to the eastern United States and transforming transportation and commerce.
E. California State Railroad Museum
The California State Railroad Museum is a major railway history museum in Sacramento showcasing historic locomotives, rolling stock, and exhibits on the development of railroads in California and the American West.
F. None of above. chosen

Provenance (5 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_69a49918e1f88190ba610f9dc8114578`	completed	March 1, 2026, 7:52 p.m.
NER	Named-entity recognition	`batch_69a4c3a0330c8190b22452d29c79fcf4`	completed	March 1, 2026, 10:54 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69ace57125a4819089216bbc75c36bb9`	completed	March 8, 2026, 2:56 a.m.
NEDg	Description generation	`batch_69ace61b0ba08190930f9e21d28b4449`	completed	March 8, 2026, 2:59 a.m.
NED2	Entity disambiguation (via description)	`batch_69ace6b6cb0481909156f99e8d2ba08a`	completed	March 8, 2026, 3:02 a.m.

Created at: March 1, 2026, 7:59 p.m.