Triple

T5083213
Position Surface form Disambiguated ID Type / Status
Subject Chicago, Burlington and Quincy Railroad E114572 entity
Predicate operatedService P5884 FINISHED
Object Nebraska Zephyr
The Nebraska Zephyr was a streamlined passenger train that provided luxury rail service between Chicago and Nebraska in the mid-20th century.
E493676 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: Nebraska Zephyr | Statement: [Chicago, Burlington and Quincy Railroad, operatedService, Nebraska Zephyr]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Nebraska Zephyr
Context triple: [Chicago, Burlington and Quincy Railroad, operatedService, Nebraska Zephyr]
  • A. Illinois Zephyr
    The Illinois Zephyr is a state-supported Amtrak passenger train that operates daily between Chicago and Quincy, Illinois, serving intermediate cities across the state.
  • B. Twin Cities Zephyr
    The Twin Cities Zephyr was a streamlined passenger train that provided fast, stylish service between Chicago and the Minneapolis–St. Paul "Twin Cities" during the mid-20th century.
  • C. Southwest Chief
    The Southwest Chief is a long-distance Amtrak passenger train route that runs between Chicago and Los Angeles, traversing the Midwest, the Great Plains, and the desert Southwest.
  • D. 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.
  • E. Texas Eagle
    The Texas Eagle is a long-distance Amtrak passenger train route running between Chicago and San Antonio, known for traversing the central United States through states like Illinois, Missouri, Arkansas, and Texas.
  • 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: Nebraska Zephyr
Triple: [Chicago, Burlington and Quincy Railroad, operatedService, Nebraska Zephyr]
Generated description
The Nebraska Zephyr was a streamlined passenger train that provided luxury rail service between Chicago and Nebraska in the mid-20th century.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Nebraska Zephyr
Target entity description: The Nebraska Zephyr was a streamlined passenger train that provided luxury rail service between Chicago and Nebraska in the mid-20th century.
  • A. Illinois Zephyr
    The Illinois Zephyr is a state-supported Amtrak passenger train that operates daily between Chicago and Quincy, Illinois, serving intermediate cities across the state.
  • B. Twin Cities Zephyr
    The Twin Cities Zephyr was a streamlined passenger train that provided fast, stylish service between Chicago and the Minneapolis–St. Paul "Twin Cities" during the mid-20th century.
  • C. Southwest Chief
    The Southwest Chief is a long-distance Amtrak passenger train route that runs between Chicago and Los Angeles, traversing the Midwest, the Great Plains, and the desert Southwest.
  • D. 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.
  • E. Texas Eagle
    The Texas Eagle is a long-distance Amtrak passenger train route running between Chicago and San Antonio, known for traversing the central United States through states like Illinois, Missouri, Arkansas, and Texas.
  • 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_69bd443dbf908190a9401e9c2dc7bd7d completed March 20, 2026, 12:57 p.m.
NER Named-entity recognition batch_69bd7517af308190bab5507a9344bf68 completed March 20, 2026, 4:25 p.m.
NED1 Entity disambiguation (via context triple) batch_69beba6f3eb48190b544bf743829cb0c completed March 21, 2026, 3:34 p.m.
NEDg Description generation batch_69bebbf5c968819093aaca8a09b2ea14 completed March 21, 2026, 3:40 p.m.
NED2 Entity disambiguation (via description) batch_69bebc8e25e08190bad1791a97b6482d completed March 21, 2026, 3:43 p.m.
Created at: March 20, 2026, 1:39 p.m.