Triple

T4108795
Position Surface form Disambiguated ID Type / Status
Subject Union Pacific dome cars E88517 entity
Predicate notableCar P44380 FINISHED
Object City of Portland dome diner
The City of Portland dome diner was a streamlined Union Pacific passenger railcar featuring an elevated glass-enclosed dome section where travelers could dine while enjoying panoramic views along the City of Portland route.
E414172 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: City of Portland dome diner | Statement: [Union Pacific dome cars, notableCar, City of Portland dome diner]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: City of Portland dome diner
Context triple: [Union Pacific dome cars, notableCar, City of Portland dome diner]
  • A. Dockside Diner
    Dockside Diner is a casual, retro-themed quick-service restaurant located on the shores of Echo Lake in Disney’s Hollywood Studios.
  • B. Carthay Circle Restaurant
    Carthay Circle Restaurant is an upscale, Old Hollywood–themed dining venue in Disney California Adventure Park known for its refined cuisine and tribute to Disney’s classic film history.
  • C. Sylvia’s Restaurant
    Sylvia’s Restaurant is a famed soul food eatery in Harlem, New York City, celebrated as a cultural institution and gathering place for locals, celebrities, and politicians alike.
  • D. All Star Cafe
    All Star Cafe was a themed sports restaurant chain backed by prominent athletes and media partners that operated in the late 1990s and early 2000s.
  • E. Maine Avenue Fish Market
    The Maine Avenue Fish Market is a historic open-air seafood market in Washington, D.C., known as one of the oldest continuously operating fish markets in the United States.
  • 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: City of Portland dome diner
Triple: [Union Pacific dome cars, notableCar, City of Portland dome diner]
Generated description
The City of Portland dome diner was a streamlined Union Pacific passenger railcar featuring an elevated glass-enclosed dome section where travelers could dine while enjoying panoramic views along the City of Portland route.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: City of Portland dome diner
Target entity description: The City of Portland dome diner was a streamlined Union Pacific passenger railcar featuring an elevated glass-enclosed dome section where travelers could dine while enjoying panoramic views along the City of Portland route.
  • A. Dockside Diner
    Dockside Diner is a casual, retro-themed quick-service restaurant located on the shores of Echo Lake in Disney’s Hollywood Studios.
  • B. Carthay Circle Restaurant
    Carthay Circle Restaurant is an upscale, Old Hollywood–themed dining venue in Disney California Adventure Park known for its refined cuisine and tribute to Disney’s classic film history.
  • C. Sylvia’s Restaurant
    Sylvia’s Restaurant is a famed soul food eatery in Harlem, New York City, celebrated as a cultural institution and gathering place for locals, celebrities, and politicians alike.
  • D. All Star Cafe
    All Star Cafe was a themed sports restaurant chain backed by prominent athletes and media partners that operated in the late 1990s and early 2000s.
  • E. Maine Avenue Fish Market
    The Maine Avenue Fish Market is a historic open-air seafood market in Washington, D.C., known as one of the oldest continuously operating fish markets in the United States.
  • 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_69aed9484fb881909146f4c772ad277c completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69af01da2b88819088a45401c0ec743a completed March 9, 2026, 5:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69b56b850d588190a0fc4b784bc7ca4f completed March 14, 2026, 2:07 p.m.
NEDg Description generation batch_69b56f7c95988190991350cfbdda9dde completed March 14, 2026, 2:23 p.m.
NED2 Entity disambiguation (via description) batch_69b56fd9293c8190ac60091bc4c447ef completed March 14, 2026, 2:25 p.m.
Created at: March 9, 2026, 3:40 p.m.