Triple

T5949810
Position Surface form Disambiguated ID Type / Status
Subject Atchison, Topeka and Santa Fe Railway E132368 entity
Predicate notableRoute P22 FINISHED
Object Chicago–San Diego
Chicago–San Diego was a prominent transcontinental passenger rail route of the Atchison, Topeka and Santa Fe Railway connecting the Midwest to Southern California.
 E562126 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Chicago–San Diego | Statement: [Atchison, Topeka and Santa Fe Railway, notableRoute, Chicago–San Diego]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chicago–San Diego
Context triple: [Atchison, Topeka and Santa Fe Railway, notableRoute, Chicago–San Diego]
  • A. Chicago–Los Angeles
    Chicago–Los Angeles is a major transcontinental rail and travel corridor in the United States connecting the Midwest to the Pacific Coast.
  • B. San Diego
    San Diego is a large coastal city in Southern California known for its mild climate, beaches, naval base, and proximity to the Mexican border.
  • C. Paris–Los Angeles
    Paris–Los Angeles is a long-haul transatlantic air route linking the capital of France with the major West Coast city in the United States.
  • D. Puerto Vallarta–San Francisco–Seattle
    Puerto Vallarta–San Francisco–Seattle is the scheduled international and domestic route along the U.S. West Coast and Mexico’s Pacific coast that was served by Alaska Airlines Flight 261.
  • E. Los Angeles–San Francisco
    Los Angeles–San Francisco refers to the major intercity corridor in California connecting the state’s largest southern metropolis with its iconic northern bay city, historically served by prominent rail and highway routes.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chicago–San Diego
Target entity description: Chicago–San Diego was a prominent transcontinental passenger rail route of the Atchison, Topeka and Santa Fe Railway connecting the Midwest to Southern California.
  • A. Chicago–Los Angeles
    Chicago–Los Angeles is a major transcontinental rail and travel corridor in the United States connecting the Midwest to the Pacific Coast.
  • B. San Diego
    San Diego is a large coastal city in Southern California known for its mild climate, beaches, naval base, and proximity to the Mexican border.
  • C. Paris–Los Angeles
    Paris–Los Angeles is a long-haul transatlantic air route linking the capital of France with the major West Coast city in the United States.
  • D. Puerto Vallarta–San Francisco–Seattle
    Puerto Vallarta–San Francisco–Seattle is the scheduled international and domestic route along the U.S. West Coast and Mexico’s Pacific coast that was served by Alaska Airlines Flight 261.
  • E. Los Angeles–San Francisco
    Los Angeles–San Francisco refers to the major intercity corridor in California connecting the state’s largest southern metropolis with its iconic northern bay city, historically served by prominent rail and highway routes.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: Chicago–San Diego
Triple: [Atchison, Topeka and Santa Fe Railway, notableRoute, Chicago–San Diego]
Generated description
Chicago–San Diego was a prominent transcontinental passenger rail route of the Atchison, Topeka and Santa Fe Railway connecting the Midwest to Southern California.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69c00869d3308190af89b2453e0f7546 elicitation completed
NER batch_69c0397fd19081908ab31b190deb8247 ner completed
NED1 batch_69c108269e6081909fcb6b880fc92011 ned_source_triple completed
NED2 batch_69c10b5c118c8190aaf5461c40472022 ned_description completed
NEDg batch_69c10af3bfbc8190aa72b7e1a88b45d5 nedg completed
Created at: March 22, 2026, 4:02 p.m.