Triple

T12641073
Position Surface form Disambiguated ID Type / Status
Subject Waterloo, Indiana E301897 entity
Predicate hasStation P35 FINISHED
Object Waterloo Amtrak station
Waterloo Amtrak station is a passenger rail station in Waterloo, Indiana, served by Amtrak trains on the Chicago–East Coast route.
 E994506 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: Waterloo Amtrak station | Statement: [Waterloo, Indiana, hasStation, Waterloo Amtrak station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Waterloo Amtrak station
Context triple: [Waterloo, Indiana, hasStation, Waterloo Amtrak station]
  • A. Jackson Amtrak station
    Jackson Amtrak station is a historic passenger rail station in Jackson, Michigan, serving Amtrak trains on the Wolverine line between Chicago and Detroit/Pontiac.
  • B. Burlington station (Amtrak)
    Burlington station (Amtrak) is a historic passenger rail station in Burlington, Iowa, serving Amtrak trains along the Mississippi River corridor.
  • C. Colfax Amtrak station
    Colfax Amtrak station is a passenger rail station in the historic Gold Rush town of Colfax, California, serving Amtrak’s California Zephyr route.
  • D. Hudson Amtrak station
    Hudson Amtrak station is a historic passenger rail station in Hudson, New York, serving as a key stop on Amtrak routes along the Hudson River corridor between upstate New York and New York City.
  • E. La Junta Amtrak station
    La Junta Amtrak station is a passenger rail station in La Junta, Colorado, serving Amtrak’s long-distance Southwest Chief route between Chicago and Los Angeles.
  • 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: Waterloo Amtrak station
Triple: [Waterloo, Indiana, hasStation, Waterloo Amtrak station]
Generated description
Waterloo Amtrak station is a passenger rail station in Waterloo, Indiana, served by Amtrak trains on the Chicago–East Coast route.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Waterloo Amtrak station
Target entity description: Waterloo Amtrak station is a passenger rail station in Waterloo, Indiana, served by Amtrak trains on the Chicago–East Coast route.
  • A. Jackson Amtrak station
    Jackson Amtrak station is a historic passenger rail station in Jackson, Michigan, serving Amtrak trains on the Wolverine line between Chicago and Detroit/Pontiac.
  • B. Burlington station (Amtrak)
    Burlington station (Amtrak) is a historic passenger rail station in Burlington, Iowa, serving Amtrak trains along the Mississippi River corridor.
  • C. Colfax Amtrak station
    Colfax Amtrak station is a passenger rail station in the historic Gold Rush town of Colfax, California, serving Amtrak’s California Zephyr route.
  • D. Hudson Amtrak station
    Hudson Amtrak station is a historic passenger rail station in Hudson, New York, serving as a key stop on Amtrak routes along the Hudson River corridor between upstate New York and New York City.
  • E. La Junta Amtrak station
    La Junta Amtrak station is a passenger rail station in La Junta, Colorado, serving Amtrak’s long-distance Southwest Chief route between Chicago and Los Angeles.
  • 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_69d7bdec9f9c8190b4bac675b7588211 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d9614ae6ac8190b42acbf2b0331fda completed April 10, 2026, 8:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69f668754acc8190b5585dbd35387867 completed May 2, 2026, 9:11 p.m.
NEDg Description generation batch_69f6697d8ac88190b4ead9ce47f3a705 completed May 2, 2026, 9:15 p.m.
NED2 Entity disambiguation (via description) batch_69f66a2fa350819091f12e16d59c2278 completed May 2, 2026, 9:18 p.m.
Created at: April 9, 2026, 5:17 p.m.