Triple

T12709824
Position Surface form Disambiguated ID Type / Status
Subject Amtrak services at Los Angeles Union Station E303686 entity
Predicate connectsTo P845 FINISHED
Object Houston, Texas via Sunset Limited
Houston, Texas via Sunset Limited is a long-distance passenger rail destination on Amtrak’s Sunset Limited route connecting Los Angeles with Houston.
 E996800 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: Houston, Texas via Sunset Limited | Statement: [Amtrak services at Los Angeles Union Station, connectsTo, Houston, Texas via Sunset Limited]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Houston, Texas via Sunset Limited
Context triple: [Amtrak services at Los Angeles Union Station, connectsTo, Houston, Texas via Sunset Limited]
  • A. Los Angeles via Sunset Limited
    Los Angeles via Sunset Limited refers to the through-service connection provided by Amtrak’s Sunset Limited train that allows passengers to travel between the Texas Eagle route and Los Angeles.
  • B. New Orleans–Houston
    New Orleans–Houston is a major rail corridor in the southern United States connecting New Orleans, Louisiana, with Houston, Texas.
  • C. Chicago–San Antonio via Texas Eagle
    Chicago–San Antonio via Texas Eagle is the long-distance Amtrak train segment that connects Chicago, Illinois, with San Antonio, Texas, as part of the Texas Eagle service.
  • D. San Antonio station
    San Antonio station is a historic Amtrak rail hub in downtown San Antonio, Texas, serving multiple long-distance passenger routes.
  • E. San Antonio station
    San Antonio station is a major central hub of the Medellín Metro system, serving as a key transfer point between multiple lines in downtown Medellín, Colombia.
  • 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: Houston, Texas via Sunset Limited
Triple: [Amtrak services at Los Angeles Union Station, connectsTo, Houston, Texas via Sunset Limited]
Generated description
Houston, Texas via Sunset Limited is a long-distance passenger rail destination on Amtrak’s Sunset Limited route connecting Los Angeles with Houston.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Houston, Texas via Sunset Limited
Target entity description: Houston, Texas via Sunset Limited is a long-distance passenger rail destination on Amtrak’s Sunset Limited route connecting Los Angeles with Houston.
  • A. Los Angeles via Sunset Limited
    Los Angeles via Sunset Limited refers to the through-service connection provided by Amtrak’s Sunset Limited train that allows passengers to travel between the Texas Eagle route and Los Angeles.
  • B. New Orleans–Houston
    New Orleans–Houston is a major rail corridor in the southern United States connecting New Orleans, Louisiana, with Houston, Texas.
  • C. Chicago–San Antonio via Texas Eagle
    Chicago–San Antonio via Texas Eagle is the long-distance Amtrak train segment that connects Chicago, Illinois, with San Antonio, Texas, as part of the Texas Eagle service.
  • D. San Antonio station
    San Antonio station is a historic Amtrak rail hub in downtown San Antonio, Texas, serving multiple long-distance passenger routes.
  • E. San Antonio station
    San Antonio station is a major central hub of the Medellín Metro system, serving as a key transfer point between multiple lines in downtown Medellín, Colombia.
  • 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_69d7bdf084148190ab9d513dc0735af4 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d96207b2d881908314efc3e350aa78 completed April 10, 2026, 8:48 p.m.
NED1 Entity disambiguation (via context triple) batch_69f671b8f43081909d4a8e4241c813a1 completed May 2, 2026, 9:50 p.m.
NEDg Description generation batch_69f672ac07908190bd2dfe90d55a13c1 completed May 2, 2026, 9:54 p.m.
NED2 Entity disambiguation (via description) batch_69f67360b530819085d5db2aa0b7513d completed May 2, 2026, 9:57 p.m.
Created at: April 9, 2026, 5:23 p.m.