Triple

T12172674
Position Surface form Disambiguated ID Type / Status
Subject Yosemite Mountain Sugar Pine Railroad E290007 entity
Predicate heritageFrom P20591 FINISHED
Object Madera Sugar Pine Lumber Company logging railroad
The Madera Sugar Pine Lumber Company logging railroad was an early 20th-century narrow-gauge logging line in the Sierra Nevada used to haul timber from forested mountain areas to lumber mills.
 E967254 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: Madera Sugar Pine Lumber Company logging railroad | Statement: [Yosemite Mountain Sugar Pine Railroad, heritageFrom, Madera Sugar Pine Lumber Company logging railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Madera Sugar Pine Lumber Company logging railroad
Context triple: [Yosemite Mountain Sugar Pine Railroad, heritageFrom, Madera Sugar Pine Lumber Company logging railroad]
  • A. Yosemite Mountain Sugar Pine Railroad
    Yosemite Mountain Sugar Pine Railroad is a historic narrow-gauge tourist railway near Yosemite National Park that offers scenic steam train rides through the Sierra Nevada forest.
  • B. Roaring Camp & Big Trees Narrow Gauge Railroad
    Roaring Camp & Big Trees Narrow Gauge Railroad is a historic tourist railway in the redwood forests near Felton, California, offering scenic steam train rides through the Santa Cruz Mountains.
  • C. Redwood Valley Railway
    Redwood Valley Railway is a miniature live steam railroad in Tilden Regional Park that offers scenic train rides through the Berkeley Hills.
  • D. Pine Tree Lumber Company
    Pine Tree Lumber Company was a major Midwestern lumber firm in the late 19th and early 20th centuries closely tied to timber magnate Frederick Weyerhaeuser’s expanding wood-products empire.
  • E. Georgia Pacific Railway
    Georgia Pacific Railway was a 19th-century American railroad company in the southeastern United States that later became part of the Southern Railway system.
  • 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: Madera Sugar Pine Lumber Company logging railroad
Triple: [Yosemite Mountain Sugar Pine Railroad, heritageFrom, Madera Sugar Pine Lumber Company logging railroad]
Generated description
The Madera Sugar Pine Lumber Company logging railroad was an early 20th-century narrow-gauge logging line in the Sierra Nevada used to haul timber from forested mountain areas to lumber mills.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Madera Sugar Pine Lumber Company logging railroad
Target entity description: The Madera Sugar Pine Lumber Company logging railroad was an early 20th-century narrow-gauge logging line in the Sierra Nevada used to haul timber from forested mountain areas to lumber mills.
  • A. Yosemite Mountain Sugar Pine Railroad
    Yosemite Mountain Sugar Pine Railroad is a historic narrow-gauge tourist railway near Yosemite National Park that offers scenic steam train rides through the Sierra Nevada forest.
  • B. Roaring Camp & Big Trees Narrow Gauge Railroad
    Roaring Camp & Big Trees Narrow Gauge Railroad is a historic tourist railway in the redwood forests near Felton, California, offering scenic steam train rides through the Santa Cruz Mountains.
  • C. Redwood Valley Railway
    Redwood Valley Railway is a miniature live steam railroad in Tilden Regional Park that offers scenic train rides through the Berkeley Hills.
  • D. Pine Tree Lumber Company
    Pine Tree Lumber Company was a major Midwestern lumber firm in the late 19th and early 20th centuries closely tied to timber magnate Frederick Weyerhaeuser’s expanding wood-products empire.
  • E. Georgia Pacific Railway
    Georgia Pacific Railway was a 19th-century American railroad company in the southeastern United States that later became part of the Southern Railway system.
  • 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_69d6ab4d6c00819095a9a7c35de83cfb completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d915dab42881908e2580c631d4d1cf completed April 10, 2026, 3:23 p.m.
NED1 Entity disambiguation (via context triple) batch_69f5f6a6de3081908e5e0030c081d5a4 completed May 2, 2026, 1:05 p.m.
NEDg Description generation batch_69f603b639208190a284fcd7e88e9d54 completed May 2, 2026, 2:01 p.m.
NED2 Entity disambiguation (via description) batch_69f60491eaec8190a16472fd37740ea0 completed May 2, 2026, 2:05 p.m.
Created at: April 8, 2026, 9:50 p.m.