Triple

T21760484
Position Surface form Disambiguated ID Type / Status
Subject Starlight E537149 entity
Predicate partOf P40 FINISHED
Object Southern Pacific passenger operations
Southern Pacific passenger operations comprised the network of intercity and commuter train services run by the Southern Pacific Railroad, including notable named trains across the western United States.
E1500759 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: Southern Pacific passenger operations | Statement: [Starlight, partOf, Southern Pacific passenger operations]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Southern Pacific passenger operations
Context triple: [Starlight, partOf, Southern Pacific passenger operations]
  • A. Southern Pacific Siskiyou and Shasta routes
    The Southern Pacific Siskiyou and Shasta routes were mountainous mainlines in Oregon and Northern California known for their steep grades, dramatic scenery, and heavy steam locomotive operations.
  • B. Southern Pacific Sunset Route
    The Southern Pacific Sunset Route was a major transcontinental rail line operated by the Southern Pacific Railroad, connecting the U.S. Gulf Coast and Pacific Coast as a key southern corridor for freight and passenger service.
  • C. Southern Pacific Overland Route
    The Southern Pacific Overland Route was a major transcontinental rail line in the United States that connected California with the Midwest and East, serving as a key artery for both passenger and freight traffic.
  • D. Southern Pacific Railroad Mechanical Department
    The Southern Pacific Railroad Mechanical Department was the in-house engineering and design division of the Southern Pacific Railroad responsible for developing and refining the company’s locomotives and rolling stock.
  • E. Union Pacific Overland Route
    The Union Pacific Overland Route was a premier transcontinental rail line that served as a primary passenger and freight corridor across the western United States.
  • 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: Southern Pacific passenger operations
Triple: [Starlight, partOf, Southern Pacific passenger operations]
Generated description
Southern Pacific passenger operations comprised the network of intercity and commuter train services run by the Southern Pacific Railroad, including notable named trains across the western United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Southern Pacific passenger operations
Target entity description: Southern Pacific passenger operations comprised the network of intercity and commuter train services run by the Southern Pacific Railroad, including notable named trains across the western United States.
  • A. Southern Pacific Siskiyou and Shasta routes
    The Southern Pacific Siskiyou and Shasta routes were mountainous mainlines in Oregon and Northern California known for their steep grades, dramatic scenery, and heavy steam locomotive operations.
  • B. Southern Pacific Sunset Route
    The Southern Pacific Sunset Route was a major transcontinental rail line operated by the Southern Pacific Railroad, connecting the U.S. Gulf Coast and Pacific Coast as a key southern corridor for freight and passenger service.
  • C. Southern Pacific Overland Route
    The Southern Pacific Overland Route was a major transcontinental rail line in the United States that connected California with the Midwest and East, serving as a key artery for both passenger and freight traffic.
  • D. Southern Pacific Railroad Mechanical Department
    The Southern Pacific Railroad Mechanical Department was the in-house engineering and design division of the Southern Pacific Railroad responsible for developing and refining the company’s locomotives and rolling stock.
  • E. Union Pacific Overland Route
    The Union Pacific Overland Route was a premier transcontinental rail line that served as a primary passenger and freight corridor across the western United States.
  • 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_69e0c46f5d1c8190bf830409e98464e5 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69f01d91e9788190a11d0295306e78a4 completed April 28, 2026, 2:38 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0a3675ffe0819092be3df2b4440ee5 completed May 17, 2026, 9:43 p.m.
NEDg Description generation batch_6a0a376c3f88819085dcf4d2f49ea121 completed May 17, 2026, 9:47 p.m.
NED2 Entity disambiguation (via description) batch_6a0a37f8c09c8190a92f78909cfbc6e7 completed May 17, 2026, 9:49 p.m.
Created at: April 16, 2026, 6:50 p.m.