Triple

T722562
Position Surface form Disambiguated ID Type / Status
Subject Belfast City Hall E14649 entity
Predicate materialUsed P1272 FINISHED
Object Portland stone
Portland stone is a durable, fine-grained limestone from the Isle of Portland in Dorset, England, widely used as a prestigious building material in British architecture.
 E88343 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 stone | Statement: [Belfast City Hall, materialUsed, Portland stone]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Portland stone
Context triple: [Belfast City Hall, materialUsed, Portland stone]
  • A. Tuckahoe marble
    Tuckahoe marble is a high-quality white to gray dolomitic marble historically quarried in Westchester County, New York, widely used in prominent 19th-century American buildings and monuments.
  • B. Georgia marble
    Georgia marble is a high-quality, durable white and gray marble quarried in the state of Georgia, widely used in prominent American monuments and buildings.
  • C. Pentelic marble
    Pentelic marble is a fine-grained, white Greek marble with a subtle golden tint, historically prized in classical architecture and sculpture for its beauty and durability.
  • D. Carrara marble
    Carrara marble is a high-quality, white or blue-grey marble from Carrara, Italy, renowned for its use in classical sculpture and Renaissance masterpieces.
  • E. Bedford limestone
    Bedford limestone is a high-quality, fine-grained building stone from southern Indiana widely used in prominent architectural landmarks across 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: Portland stone
Triple: [Belfast City Hall, materialUsed, Portland stone]
Generated description
Portland stone is a durable, fine-grained limestone from the Isle of Portland in Dorset, England, widely used as a prestigious building material in British architecture.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Portland stone
Target entity description: Portland stone is a durable, fine-grained limestone from the Isle of Portland in Dorset, England, widely used as a prestigious building material in British architecture.
  • A. Tuckahoe marble
    Tuckahoe marble is a high-quality white to gray dolomitic marble historically quarried in Westchester County, New York, widely used in prominent 19th-century American buildings and monuments.
  • B. Georgia marble
    Georgia marble is a high-quality, durable white and gray marble quarried in the state of Georgia, widely used in prominent American monuments and buildings.
  • C. Pentelic marble
    Pentelic marble is a fine-grained, white Greek marble with a subtle golden tint, historically prized in classical architecture and sculpture for its beauty and durability.
  • D. Carrara marble
    Carrara marble is a high-quality, white or blue-grey marble from Carrara, Italy, renowned for its use in classical sculpture and Renaissance masterpieces.
  • E. Bedford limestone
    Bedford limestone is a high-quality, fine-grained building stone from southern Indiana widely used in prominent architectural landmarks across 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_69a4934c753c81909b309027e48b9b3a completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a4a591124c8190842e7ef18b064198 completed March 1, 2026, 8:46 p.m.
NED1 Entity disambiguation (via context triple) batch_69a64a5a7e788190b5ad2505b68ca48d completed March 3, 2026, 2:41 a.m.
NEDg Description generation batch_69a64e3c1eac8190a62e4b24b0715dc2 completed March 3, 2026, 2:58 a.m.
NED2 Entity disambiguation (via description) batch_69a64ec899ec8190b8d2916c5965fabc completed March 3, 2026, 3 a.m.
Created at: March 1, 2026, 7:37 p.m.