Triple

T8464618
Position Surface form Disambiguated ID Type / Status
Subject North Island Credit Union Amphitheatre E200128 entity
Predicate formerName P65 FINISHED
Object Mattress Firm Amphitheatre
Mattress Firm Amphitheatre was a former corporate-sponsored name of the large outdoor concert venue now known as North Island Credit Union Amphitheatre in Chula Vista, California.
E737089 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: Mattress Firm Amphitheatre | Statement: [North Island Credit Union Amphitheatre, formerName, Mattress Firm Amphitheatre]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mattress Firm Amphitheatre
Context triple: [North Island Credit Union Amphitheatre, formerName, Mattress Firm Amphitheatre]
  • A. Kimmel Pavilion
    Kimmel Pavilion is a state-of-the-art inpatient hospital building at NYU Langone Health in New York City, designed to provide advanced, patient-centered medical care.
  • B. Memorial Amphitheater
    Memorial Amphitheater is a grand ceremonial structure at Arlington National Cemetery that serves as a central site for national memorial services and military honors, including those at the Tomb of the Unknown Soldier.
  • C. Azura Amphitheater
    Azura Amphitheater is a large outdoor concert venue in Bonner Springs, Kansas, known for hosting major live music performances and events.
  • D. First Security Amphitheater
    First Security Amphitheater is an outdoor performance venue in downtown Little Rock, Arkansas, known for hosting concerts and community events along the Arkansas River.
  • E. Credit Union 1 Amphitheater
    Credit Union 1 Amphitheater is an outdoor concert and events venue in Tinley Park, Illinois, known for hosting major touring artists and large-scale live performances.
  • 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: Mattress Firm Amphitheatre
Triple: [North Island Credit Union Amphitheatre, formerName, Mattress Firm Amphitheatre]
Generated description
Mattress Firm Amphitheatre was a former corporate-sponsored name of the large outdoor concert venue now known as North Island Credit Union Amphitheatre in Chula Vista, California.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mattress Firm Amphitheatre
Target entity description: Mattress Firm Amphitheatre was a former corporate-sponsored name of the large outdoor concert venue now known as North Island Credit Union Amphitheatre in Chula Vista, California.
  • A. Kimmel Pavilion
    Kimmel Pavilion is a state-of-the-art inpatient hospital building at NYU Langone Health in New York City, designed to provide advanced, patient-centered medical care.
  • B. Memorial Amphitheater
    Memorial Amphitheater is a grand ceremonial structure at Arlington National Cemetery that serves as a central site for national memorial services and military honors, including those at the Tomb of the Unknown Soldier.
  • C. Azura Amphitheater
    Azura Amphitheater is a large outdoor concert venue in Bonner Springs, Kansas, known for hosting major live music performances and events.
  • D. First Security Amphitheater
    First Security Amphitheater is an outdoor performance venue in downtown Little Rock, Arkansas, known for hosting concerts and community events along the Arkansas River.
  • E. Credit Union 1 Amphitheater
    Credit Union 1 Amphitheater is an outdoor concert and events venue in Tinley Park, Illinois, known for hosting major touring artists and large-scale live performances.
  • 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_69ca83198c4c8190a337bf717d1813f5 completed March 30, 2026, 2:05 p.m.
NER Named-entity recognition batch_69cbe4d05b2881909bddf58df0ee1143 completed March 31, 2026, 3:14 p.m.
NED1 Entity disambiguation (via context triple) batch_69ce39e0d7788190add03271c940e1ff completed April 2, 2026, 9:41 a.m.
NEDg Description generation batch_69ce3ad9a3a88190929a6c6ae7ee58cf completed April 2, 2026, 9:46 a.m.
NED2 Entity disambiguation (via description) batch_69ce3cc54d888190ae86b787afc38f7b completed April 2, 2026, 9:54 a.m.
Created at: March 30, 2026, 6:11 p.m.