Triple

T11214198

Position	Surface form	Disambiguated ID	Type / Status
Subject	John Frank Stevens	`E265389`	entity
Predicate	workedOn	`P3`	FINISHED
Object	Havre–Great Falls line of the Great Northern Railway The Havre–Great Falls line of the Great Northern Railway is a historic rail route in Montana that connected the agricultural and industrial regions around Great Falls with the transcontinental main line at Havre.	`E912130`	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: Havre–Great Falls line of the Great Northern Railway | Statement: [John Frank Stevens, workedOn, Havre–Great Falls line of the Great Northern Railway]

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

Target entity: Havre–Great Falls line of the Great Northern Railway
Context triple: [John Frank Stevens, workedOn, Havre–Great Falls line of the Great Northern Railway]

A. Hannibal and St. Joseph Railroad
The Hannibal and St. Joseph Railroad was a pioneering 19th-century rail line in Missouri, notable as one of the first railroads to cross the state and for carrying early Pony Express mail.
B. Union Pacific Northwest Line
The Union Pacific Northwest Line is a commuter rail route serving Chicago and its northwestern suburbs as part of the Metra rail system.
C. White Pass & Yukon Route Railroad terminus
The White Pass & Yukon Route Railroad terminus is the historic endpoint of the narrow-gauge mountain railway that served as a key transportation link during the Klondike Gold Rush and now operates as a popular heritage and tourist line.
D. International–Great Northern Railroad
The International–Great Northern Railroad was a historic Texas railroad that played a key role in the development of transportation and commerce across the state in the late 19th and early 20th centuries.
E. Great Northern
Great Northern is a British train operating company providing commuter and regional rail services across parts of London and the East of England.
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: Havre–Great Falls line of the Great Northern Railway
Triple: [John Frank Stevens, workedOn, Havre–Great Falls line of the Great Northern Railway]

Generated description

The Havre–Great Falls line of the Great Northern Railway is a historic rail route in Montana that connected the agricultural and industrial regions around Great Falls with the transcontinental main line at Havre.

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

Target entity: Havre–Great Falls line of the Great Northern Railway
Target entity description: The Havre–Great Falls line of the Great Northern Railway is a historic rail route in Montana that connected the agricultural and industrial regions around Great Falls with the transcontinental main line at Havre.

A. Hannibal and St. Joseph Railroad
The Hannibal and St. Joseph Railroad was a pioneering 19th-century rail line in Missouri, notable as one of the first railroads to cross the state and for carrying early Pony Express mail.
B. Union Pacific Northwest Line
The Union Pacific Northwest Line is a commuter rail route serving Chicago and its northwestern suburbs as part of the Metra rail system.
C. White Pass & Yukon Route Railroad terminus
The White Pass & Yukon Route Railroad terminus is the historic endpoint of the narrow-gauge mountain railway that served as a key transportation link during the Klondike Gold Rush and now operates as a popular heritage and tourist line.
D. International–Great Northern Railroad
The International–Great Northern Railroad was a historic Texas railroad that played a key role in the development of transportation and commerce across the state in the late 19th and early 20th centuries.
E. Great Northern
Great Northern is a British train operating company providing commuter and regional rail services across parts of London and the East of England.
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_69d6aac59460819089b9848b27f57848`	completed	April 8, 2026, 7:21 p.m.
NER	Named-entity recognition	`batch_69d7e8d7f47c8190b78c640ff1a01943`	completed	April 9, 2026, 5:58 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69e497569efc8190b8e9cb6b1db3f94d`	completed	April 19, 2026, 8:50 a.m.
NEDg	Description generation	`batch_69e49c0a92b08190ac5debb7d67ca776`	completed	April 19, 2026, 9:10 a.m.
NED2	Entity disambiguation (via description)	`batch_69e49e8dc4ec81908d0defe77827d197`	completed	April 19, 2026, 9:21 a.m.

Created at: April 8, 2026, 9:30 p.m.