Triple

T92561
Position Surface form Disambiguated ID Type / Status
Subject Portland, Maine E1859 entity
Predicate hasLandmark P105 FINISHED
Object Maine Narrow Gauge Railroad Museum
The Maine Narrow Gauge Railroad Museum is a heritage railway and museum in Portland, Maine, dedicated to preserving and operating historic two-foot gauge railroad equipment from the state's past.
E9060 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: Maine Narrow Gauge Railroad Museum | Statement: [Portland, Maine, hasLandmark, Maine Narrow Gauge Railroad Museum]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Maine Narrow Gauge Railroad Museum
Context triple: [Portland, Maine, hasLandmark, Maine Narrow Gauge Railroad Museum]
  • A. Salem Maritime National Historic Site
    Salem Maritime National Historic Site is a historic waterfront area in Salem, Massachusetts, preserving 18th- and 19th-century wharves, buildings, and artifacts related to the city’s prominent role in early American maritime trade.
  • B. California State Railroad Museum
    The California State Railroad Museum is a major railway history museum in Sacramento showcasing historic locomotives, rolling stock, and exhibits on the development of railroads in California and the American West.
  • C. New England Aquarium
    The New England Aquarium is a major public aquarium and marine conservation center on Boston’s waterfront, known for its giant ocean tank, diverse marine life exhibits, and educational programs.
  • D. Fogg Museum
    The Fogg Museum is a prominent Harvard University art museum renowned for its extensive Western art collections and influential role in art historical research and teaching.
  • E. Olana State Historic Site
    Olana State Historic Site is the former home and Persian-inspired hilltop estate of Hudson River School painter Frederic Edwin Church, now preserved as a museum and landscape overlooking the Hudson River.
  • 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: Maine Narrow Gauge Railroad Museum
Triple: [Portland, Maine, hasLandmark, Maine Narrow Gauge Railroad Museum]
Generated description
The Maine Narrow Gauge Railroad Museum is a heritage railway and museum in Portland, Maine, dedicated to preserving and operating historic two-foot gauge railroad equipment from the state's past.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Maine Narrow Gauge Railroad Museum
Target entity description: The Maine Narrow Gauge Railroad Museum is a heritage railway and museum in Portland, Maine, dedicated to preserving and operating historic two-foot gauge railroad equipment from the state's past.
  • A. Salem Maritime National Historic Site
    Salem Maritime National Historic Site is a historic waterfront area in Salem, Massachusetts, preserving 18th- and 19th-century wharves, buildings, and artifacts related to the city’s prominent role in early American maritime trade.
  • B. California State Railroad Museum
    The California State Railroad Museum is a major railway history museum in Sacramento showcasing historic locomotives, rolling stock, and exhibits on the development of railroads in California and the American West.
  • C. New England Aquarium
    The New England Aquarium is a major public aquarium and marine conservation center on Boston’s waterfront, known for its giant ocean tank, diverse marine life exhibits, and educational programs.
  • D. Fogg Museum
    The Fogg Museum is a prominent Harvard University art museum renowned for its extensive Western art collections and influential role in art historical research and teaching.
  • E. Olana State Historic Site
    Olana State Historic Site is the former home and Persian-inspired hilltop estate of Hudson River School painter Frederic Edwin Church, now preserved as a museum and landscape overlooking the Hudson River.
  • 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.