Triple

T14868277
Position Surface form Disambiguated ID Type / Status
Subject Ferdinand Fellner E349673 entity
Predicate coFounded P104 FINISHED
Object architecture firm Fellner & Helmer
Fellner & Helmer was a prominent late 19th- and early 20th-century Viennese architecture firm renowned for designing grand theaters and opera houses across Central and Eastern Europe.
 E1124407 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: architecture firm Fellner & Helmer | Statement: [Ferdinand Fellner, coFounded, architecture firm Fellner & Helmer]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: architecture firm Fellner & Helmer
Context triple: [Ferdinand Fellner, coFounded, architecture firm Fellner & Helmer]
  • A. architectural firm Severance & Van Alen
    Severance & Van Alen was an early 20th-century New York architectural firm best known as the partnership that included William Van Alen, later famed for designing the Chrysler Building.
  • B. Swiss architecture firm Herzog & de Meuron
    Herzog & de Meuron is a renowned Swiss architecture firm known for its innovative, material-focused designs and landmark projects such as the Tate Modern in London and the Beijing National Stadium.
  • C. Zeidler Partnership Architects
    Zeidler Partnership Architects is an international architecture firm known for designing prominent commercial and cultural buildings, including major skyscrapers in North America and Latin America.
  • D. Fentress Architects
    Fentress Architects is an international architecture firm known for designing large-scale public and civic buildings, including major airports, museums, and sports arenas.
  • E. Pfeiffer Partners Architects
    Pfeiffer Partners Architects is an architecture firm known for continuing the legacy and design practice of the former Hardy Holzman Pfeiffer Associates, with a focus on cultural, educational, and civic projects.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: architecture firm Fellner & Helmer
Target entity description: Fellner & Helmer was a prominent late 19th- and early 20th-century Viennese architecture firm renowned for designing grand theaters and opera houses across Central and Eastern Europe.
  • A. architectural firm Severance & Van Alen
    Severance & Van Alen was an early 20th-century New York architectural firm best known as the partnership that included William Van Alen, later famed for designing the Chrysler Building.
  • B. Swiss architecture firm Herzog & de Meuron
    Herzog & de Meuron is a renowned Swiss architecture firm known for its innovative, material-focused designs and landmark projects such as the Tate Modern in London and the Beijing National Stadium.
  • C. Zeidler Partnership Architects
    Zeidler Partnership Architects is an international architecture firm known for designing prominent commercial and cultural buildings, including major skyscrapers in North America and Latin America.
  • D. Fentress Architects
    Fentress Architects is an international architecture firm known for designing large-scale public and civic buildings, including major airports, museums, and sports arenas.
  • E. Pfeiffer Partners Architects
    Pfeiffer Partners Architects is an architecture firm known for continuing the legacy and design practice of the former Hardy Holzman Pfeiffer Associates, with a focus on cultural, educational, and civic projects.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: architecture firm Fellner & Helmer
Triple: [Ferdinand Fellner, coFounded, architecture firm Fellner & Helmer]
Generated description
Fellner & Helmer was a prominent late 19th- and early 20th-century Viennese architecture firm renowned for designing grand theaters and opera houses across Central and Eastern Europe.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d822ee4f408190b6ac3b2fa434f0df elicitation completed
NER batch_69ded5776b848190bfe3a06ff261dc31 ner completed
NED1 batch_69fe651067cc8190b9c218ef1f802762 ned_source_triple completed
NED2 batch_69fe67f2fab881908b8be1aa344ee5b5 ned_description completed
NEDg batch_69fe675dd7288190901df5f7806f9b3f nedg completed
Created at: April 10, 2026, 1:55 a.m.