Triple

T11141323
Position Surface form Disambiguated ID Type / Status
Subject Colorado silver boom E263560 entity
Predicate majorMiningDistrict P8843 FINISHED
Object Leadville mining district E424810 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: Leadville mining district | Statement: [Colorado silver boom, majorMiningDistrict, Leadville mining district]

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: Leadville mining district
Context triple: [Colorado silver boom, majorMiningDistrict, Leadville mining district]
  • A. Leadville mining district chosen
    The Leadville mining district is a historically significant Colorado mining region famed for its rich silver, lead, and zinc deposits that fueled major mining booms in the late 19th century.
  • B. Tintic Mining District
    Tintic Mining District is a historic mining area in central Utah known for its rich deposits of silver, lead, gold, and other minerals that spurred significant economic development in the late 19th and early 20th centuries.
  • C. Pioche mining district
    The Pioche mining district is a historic silver and lead mining area centered around the town of Pioche in southeastern Nevada, known for its rich ore deposits and boomtown past in the late 19th century.
  • D. Round Mountain mining district
    The Round Mountain mining district is a notable gold-producing area in central Nevada, best known for the large open-pit Round Mountain Gold Mine.
  • E. Grass Valley mining district
    The Grass Valley mining district is a historic gold-mining region in Nevada County, California, known for its rich quartz gold deposits and numerous deep hard-rock mines.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: majorMiningDistrict
Context triple: [Colorado silver boom, majorMiningDistrict, Leadville mining district]
  • A. hasMiningDistrict chosen
    Indicates that an entity possesses, contains, or is associated with a designated mining district within its domain or jurisdiction.
  • B. majorMine
    Indicates that a mine is classified as a major or primary mining site, typically based on its scale, output, or importance.
  • C. eraOfMajorMiningActivity
    Indicates the time period during which significant or primary mining operations took place for the associated entity.
  • D. hasMiningArea
    Indicates that an entity possesses, controls, or is associated with a designated area where mining activities take place.
  • E. foundedAsMiningTownIn
    Indicates that a settlement or town was originally established as a mining town in the specified location or jurisdiction.
  • F. None of above.

Provenance (4 batches)

Stage Batch ID Job type Status
creating batch_69d6aa9c0ba08190bbd19c217489b755 elicitation completed
NER batch_69d7e8623158819096ad1678fa9e72bb ner completed
NED1 batch_69e4420c17788190b72ca616fd5345f8 ned_source_triple completed
PD batch_69d75ce104908190b6cc31ef2f67846a pd completed
Created at: April 8, 2026, 9:28 p.m.