Triple

T92559
Position Surface form Disambiguated ID Type / Status
Subject Portland, Maine E1859 entity
Predicate hasLandmark P105 FINISHED
Object Portland Observatory
The Portland Observatory is a historic maritime signal tower in Portland, Maine, and the last surviving structure of its kind in the United States.
 E9059 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 Observatory | Statement: [Portland, Maine, hasLandmark, Portland Observatory]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Portland Observatory
Context triple: [Portland, Maine, hasLandmark, Portland Observatory]
  • A. Maritime Greenwich
    Maritime Greenwich is a historic district in southeast London renowned for its maritime heritage, royal park, and the Royal Observatory, where the Prime Meridian is located.
  • B. Las Campanas Observatory
    Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
  • C. Science and Industry Museum
    The Science and Industry Museum is a major museum in Manchester, England, focusing on the city’s industrial heritage, scientific innovation, and technological development.
  • D. The Botanic Garden
    The Botanic Garden is an 18th-century didactic poem by Erasmus Darwin that blends poetic descriptions of plants with early evolutionary ideas and Enlightenment science.
  • E. White Hall
    White Hall is a grand ceremonial room within the Livadia Palace, historically used for important receptions and diplomatic events.
  • 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 Observatory
Triple: [Portland, Maine, hasLandmark, Portland Observatory]
Generated description
The Portland Observatory is a historic maritime signal tower in Portland, Maine, and the last surviving structure of its kind in the United States.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Portland Observatory
Target entity description: The Portland Observatory is a historic maritime signal tower in Portland, Maine, and the last surviving structure of its kind in the United States.
  • A. Maritime Greenwich
    Maritime Greenwich is a historic district in southeast London renowned for its maritime heritage, royal park, and the Royal Observatory, where the Prime Meridian is located.
  • B. Las Campanas Observatory
    Las Campanas Observatory is a major astronomical observatory in Chile renowned for its high-quality observing conditions and its role in cutting-edge optical and infrared astronomy.
  • C. Science and Industry Museum
    The Science and Industry Museum is a major museum in Manchester, England, focusing on the city’s industrial heritage, scientific innovation, and technological development.
  • D. The Botanic Garden
    The Botanic Garden is an 18th-century didactic poem by Erasmus Darwin that blends poetic descriptions of plants with early evolutionary ideas and Enlightenment science.
  • E. White Hall
    White Hall is a grand ceremonial room within the Livadia Palace, historically used for important receptions and diplomatic events.
  • 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a24faa6d608190920c8fc144e85e21 completed Feb. 28, 2026, 2:15 a.m.
NED1 Entity disambiguation (via context triple) batch_69a266ebb994819085fb84dd1d2d25ad completed Feb. 28, 2026, 3:54 a.m.
NEDg Description generation batch_69a267b740388190a321023aa52a539a completed Feb. 28, 2026, 3:57 a.m.
NED2 Entity disambiguation (via description) batch_69a2685dc64c8190bd611985d1bc27a3 completed Feb. 28, 2026, 4 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.