Triple

T3835589
Position Surface form Disambiguated ID Type / Status
Subject Union Pacific lounge cars E91122 entity
Predicate associatedWith P37 FINISHED
Object Union Pacific City of San Francisco
Union Pacific City of San Francisco was a premier streamlined passenger train that operated between Chicago and San Francisco, known for its luxury amenities and scenic transcontinental route.
E394360 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: Union Pacific City of San Francisco | Statement: [Union Pacific lounge cars, associatedWith, Union Pacific City of San Francisco]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Union Pacific City of San Francisco
Context triple: [Union Pacific lounge cars, associatedWith, Union Pacific City of San Francisco]
  • A. Union Pacific Railroad
    Union Pacific Railroad is one of the largest freight rail networks in the United States, operating an extensive system that spans the western two-thirds of the country.
  • B. Union Pacific City of Portland
    Union Pacific City of Portland was a streamlined passenger train operated by the Union Pacific Railroad that provided luxury long-distance service between Chicago and Portland in the mid-20th century.
  • C. San Francisco Overland Limited
    The San Francisco Overland Limited was a prominent early 20th-century transcontinental passenger train that connected Chicago and San Francisco, operated by the Union Pacific and Southern Pacific railroads.
  • D. Southern Pacific Railroad
    Southern Pacific Railroad was a major American railroad company that operated extensive rail networks across the western and southwestern United States from the 19th to the late 20th century.
  • E. Union Pacific North Line
    The Union Pacific North Line is a Metra commuter rail line in the Chicago metropolitan area that runs north from downtown Chicago through suburbs along Lake Michigan into Kenosha, Wisconsin.
  • 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: Union Pacific City of San Francisco
Triple: [Union Pacific lounge cars, associatedWith, Union Pacific City of San Francisco]
Generated description
Union Pacific City of San Francisco was a premier streamlined passenger train that operated between Chicago and San Francisco, known for its luxury amenities and scenic transcontinental route.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Union Pacific City of San Francisco
Target entity description: Union Pacific City of San Francisco was a premier streamlined passenger train that operated between Chicago and San Francisco, known for its luxury amenities and scenic transcontinental route.
  • A. Union Pacific Railroad
    Union Pacific Railroad is one of the largest freight rail networks in the United States, operating an extensive system that spans the western two-thirds of the country.
  • B. Union Pacific City of Portland
    Union Pacific City of Portland was a streamlined passenger train operated by the Union Pacific Railroad that provided luxury long-distance service between Chicago and Portland in the mid-20th century.
  • C. San Francisco Overland Limited
    The San Francisco Overland Limited was a prominent early 20th-century transcontinental passenger train that connected Chicago and San Francisco, operated by the Union Pacific and Southern Pacific railroads.
  • D. Southern Pacific Railroad
    Southern Pacific Railroad was a major American railroad company that operated extensive rail networks across the western and southwestern United States from the 19th to the late 20th century.
  • E. Union Pacific North Line
    The Union Pacific North Line is a Metra commuter rail line in the Chicago metropolitan area that runs north from downtown Chicago through suburbs along Lake Michigan into Kenosha, Wisconsin.
  • 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_69aed960b538819096561c8ed448dec9 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aeeb9a27508190b05e5312cc7c8033 completed March 9, 2026, 3:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69b51228a7a48190bc42898be15b450b completed March 14, 2026, 7:45 a.m.
NEDg Description generation batch_69b512e3721c8190accd26499191c153 completed March 14, 2026, 7:48 a.m.
NED2 Entity disambiguation (via description) batch_69b513618b888190acda94dcc91d24d2 completed March 14, 2026, 7:50 a.m.
Created at: March 9, 2026, 3:18 p.m.