Triple

T1633408
Position Surface form Disambiguated ID Type / Status
Subject Metro (Portland regional government) E35307 entity
Predicate operatorOf P179 FINISHED
Object Portland Expo Center
The Portland Expo Center is a large multi-purpose exhibition and event venue in Portland, Oregon, hosting trade shows, conventions, consumer events, and community gatherings.
 E185465 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: Portland Expo Center | Statement: [Metro (Portland regional government), operatorOf, Portland Expo Center]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Portland Expo Center
Context triple: [Metro (Portland regional government), operatorOf, Portland Expo Center]
  • A. Portland Expo Building
    The Portland Expo Building is a historic multi-purpose arena in Portland, Maine, best known today as the home court of the NBA G League’s Maine Celtics.
  • B. Oregon Convention Center
    The Oregon Convention Center is a major conference and event venue in Portland, Oregon, known for its distinctive twin glass spires and large-scale trade shows, conventions, and public events.
  • C. Henry J. Kaiser Convention Center
    The Henry J. Kaiser Convention Center is a historic multi-purpose event and performance venue in Oakland, California, known for hosting concerts, civic gatherings, and community events.
  • D. Austin Convention Center
    The Austin Convention Center is a large, modern event and exhibition facility in downtown Austin, Texas, hosting conferences, trade shows, and major cultural gatherings.
  • E. Anaheim Convention Center
    The Anaheim Convention Center is a large, modern convention and exhibition complex in Anaheim, California, known for hosting major trade shows, conferences, and events near the Disneyland Resort.
  • 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: Portland Expo Center
Triple: [Metro (Portland regional government), operatorOf, Portland Expo Center]
Generated description
The Portland Expo Center is a large multi-purpose exhibition and event venue in Portland, Oregon, hosting trade shows, conventions, consumer events, and community gatherings.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Portland Expo Center
Target entity description: The Portland Expo Center is a large multi-purpose exhibition and event venue in Portland, Oregon, hosting trade shows, conventions, consumer events, and community gatherings.
  • A. Portland Expo Building
    The Portland Expo Building is a historic multi-purpose arena in Portland, Maine, best known today as the home court of the NBA G League’s Maine Celtics.
  • B. Oregon Convention Center
    The Oregon Convention Center is a major conference and event venue in Portland, Oregon, known for its distinctive twin glass spires and large-scale trade shows, conventions, and public events.
  • C. Henry J. Kaiser Convention Center
    The Henry J. Kaiser Convention Center is a historic multi-purpose event and performance venue in Oakland, California, known for hosting concerts, civic gatherings, and community events.
  • D. Austin Convention Center
    The Austin Convention Center is a large, modern event and exhibition facility in downtown Austin, Texas, hosting conferences, trade shows, and major cultural gatherings.
  • E. Anaheim Convention Center
    The Anaheim Convention Center is a large, modern convention and exhibition complex in Anaheim, California, known for hosting major trade shows, conferences, and events near the Disneyland Resort.
  • 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_69a886036bc081909ff5de16dbe5e8ea completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69a909f86abc8190b0b81310dcd7feed completed March 5, 2026, 4:43 a.m.
NED1 Entity disambiguation (via context triple) batch_69ad6099979481908e2c506323d546dd completed March 8, 2026, 11:42 a.m.
NEDg Description generation batch_69ad6111fcc8819086923966b485c592 completed March 8, 2026, 11:44 a.m.
NED2 Entity disambiguation (via description) batch_69ad619f842c8190936b659b30d6aa10 completed March 8, 2026, 11:46 a.m.
Created at: March 4, 2026, 7:28 p.m.