Triple

T20530866
Position Surface form Disambiguated ID Type / Status
Subject SP 4449 E504061 entity
Predicate location P40 FINISHED
Object Oregon Rail Heritage Center, Portland, Oregon
The Oregon Rail Heritage Center in Portland, Oregon is a railway museum and working engine house best known for preserving and operating historic steam locomotives, including the famed Southern Pacific 4449.
 E1435706 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: Oregon Rail Heritage Center, Portland, Oregon | Statement: [SP 4449, location, Oregon Rail Heritage Center, Portland, Oregon]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Oregon Rail Heritage Center, Portland, Oregon
Context triple: [SP 4449, location, Oregon Rail Heritage Center, Portland, Oregon]
  • A. Pacific Southwest Railway Museum
    The Pacific Southwest Railway Museum is a heritage railroad and museum in Campo, California, dedicated to preserving and operating historic railway equipment from the American Southwest.
  • B. Troutdale Rail Depot Museum
    Troutdale Rail Depot Museum is a local history museum housed in a historic train depot that showcases Troutdale and regional railroad heritage.
  • C. Chehalis-Centralia Railroad and Museum
    The Chehalis-Centralia Railroad and Museum is a heritage railway and museum offering historic train excursions and exhibits that preserve and showcase the region’s railroading history.
  • D. Union Pacific Railroad Museum
    The Union Pacific Railroad Museum is a history museum in Council Bluffs, Iowa, dedicated to preserving and showcasing the heritage of the Union Pacific Railroad and American railroading.
  • E. Western America Railroad Museum
    The Western America Railroad Museum is a museum in Barstow, California, dedicated to preserving and showcasing the history and artifacts of railroading in the American West.
  • 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: Oregon Rail Heritage Center, Portland, Oregon
Triple: [SP 4449, location, Oregon Rail Heritage Center, Portland, Oregon]
Generated description
The Oregon Rail Heritage Center in Portland, Oregon is a railway museum and working engine house best known for preserving and operating historic steam locomotives, including the famed Southern Pacific 4449.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Oregon Rail Heritage Center, Portland, Oregon
Target entity description: The Oregon Rail Heritage Center in Portland, Oregon is a railway museum and working engine house best known for preserving and operating historic steam locomotives, including the famed Southern Pacific 4449.
  • A. Pacific Southwest Railway Museum
    The Pacific Southwest Railway Museum is a heritage railroad and museum in Campo, California, dedicated to preserving and operating historic railway equipment from the American Southwest.
  • B. Troutdale Rail Depot Museum
    Troutdale Rail Depot Museum is a local history museum housed in a historic train depot that showcases Troutdale and regional railroad heritage.
  • C. Chehalis-Centralia Railroad and Museum
    The Chehalis-Centralia Railroad and Museum is a heritage railway and museum offering historic train excursions and exhibits that preserve and showcase the region’s railroading history.
  • D. Union Pacific Railroad Museum
    The Union Pacific Railroad Museum is a history museum in Council Bluffs, Iowa, dedicated to preserving and showcasing the heritage of the Union Pacific Railroad and American railroading.
  • E. Western America Railroad Museum
    The Western America Railroad Museum is a museum in Barstow, California, dedicated to preserving and showcasing the history and artifacts of railroading in the American West.
  • 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_69e0b4b3a6e08190ae663701f50fab8e completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e6a06b923c81908ba24be6645a7c61 completed April 20, 2026, 9:53 p.m.
NED1 Entity disambiguation (via context triple) batch_6a089d4a828481909085772ef81a2348 completed May 16, 2026, 4:37 p.m.
NEDg Description generation batch_6a089e8473188190956a0817cd7bbae0 completed May 16, 2026, 4:42 p.m.
NED2 Entity disambiguation (via description) batch_6a089f04483481908fe015bd7514af35 completed May 16, 2026, 4:44 p.m.
Created at: April 16, 2026, 11:37 a.m.