Triple

T22811360
Position Surface form Disambiguated ID Type / Status
Subject Arlington International Racecourse E564683 entity
Predicate hasGrandstand P6313 FINISHED
Object Arlington grandstand
The Arlington grandstand is the main spectator structure at Arlington International Racecourse, providing tiered seating and amenities for viewing horse races.
 E1555427 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: Arlington grandstand | Statement: [Arlington International Racecourse, hasGrandstand, Arlington grandstand]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Arlington grandstand
Context triple: [Arlington International Racecourse, hasGrandstand, Arlington grandstand]
  • A. Memorial Amphitheater at Arlington National Cemetery
    The Memorial Amphitheater at Arlington National Cemetery is a grand ceremonial structure used for major national observances, including Memorial Day and Veterans Day services honoring U.S. military personnel.
  • B. Arlington County Government Center
    Arlington County Government Center is the main administrative complex that houses the central offices and operations of Arlington County’s local government in Virginia.
  • C. Old Amphitheater at Arlington National Cemetery
    The Old Amphitheater at Arlington National Cemetery was the original open-air ceremonial structure used for memorial services and national observances before being superseded by the larger Memorial Amphitheater.
  • D. Long Bridge Park, Arlington
    Long Bridge Park in Arlington is a modern recreational area featuring sports fields, walking trails, and views of the Potomac River and Washington, D.C.
  • E. Old National Stadium
    Old National Stadium was Japan’s former main national sports arena in Tokyo, best known for hosting the 1964 Summer Olympics before being demolished and succeeded by the new National Stadium.
  • 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: Arlington grandstand
Triple: [Arlington International Racecourse, hasGrandstand, Arlington grandstand]
Generated description
The Arlington grandstand is the main spectator structure at Arlington International Racecourse, providing tiered seating and amenities for viewing horse races.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Arlington grandstand
Target entity description: The Arlington grandstand is the main spectator structure at Arlington International Racecourse, providing tiered seating and amenities for viewing horse races.
  • A. Memorial Amphitheater at Arlington National Cemetery
    The Memorial Amphitheater at Arlington National Cemetery is a grand ceremonial structure used for major national observances, including Memorial Day and Veterans Day services honoring U.S. military personnel.
  • B. Arlington County Government Center
    Arlington County Government Center is the main administrative complex that houses the central offices and operations of Arlington County’s local government in Virginia.
  • C. Old Amphitheater at Arlington National Cemetery
    The Old Amphitheater at Arlington National Cemetery was the original open-air ceremonial structure used for memorial services and national observances before being superseded by the larger Memorial Amphitheater.
  • D. Long Bridge Park, Arlington
    Long Bridge Park in Arlington is a modern recreational area featuring sports fields, walking trails, and views of the Potomac River and Washington, D.C.
  • E. Old National Stadium
    Old National Stadium was Japan’s former main national sports arena in Tokyo, best known for hosting the 1964 Summer Olympics before being demolished and succeeded by the new National Stadium.
  • 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_69e245823f4c8190ade442cdcc2c224a completed April 17, 2026, 2:36 p.m.
NER Named-entity recognition batch_69f17d60f5948190b624b2dab04cbe63 completed April 29, 2026, 3:39 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0b9ea1d6308190bf37f8a37d5be5f6 completed May 18, 2026, 11:20 p.m.
NEDg Description generation batch_6a0ba0aa6b04819097d75601cb25c6ef completed May 18, 2026, 11:28 p.m.
NED2 Entity disambiguation (via description) batch_6a0ba149b79c8190abfd2b285f8e3e3c completed May 18, 2026, 11:31 p.m.
Created at: April 17, 2026, 3:32 p.m.