Triple

T20512830
Position Surface form Disambiguated ID Type / Status
Subject Iron Range E503605 entity
Predicate tourismAttraction P530 FINISHED
Object Hull–Rust–Mahoning Open Pit Iron Mine — NE NERFINISHED

How this triple was built (2 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: Hull–Rust–Mahoning Open Pit Iron Mine | Statement: [Iron Range, tourismAttraction, Hull–Rust–Mahoning Open Pit Iron Mine]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Hull–Rust–Mahoning Open Pit Iron Mine
Context triple: [Iron Range, tourismAttraction, Hull–Rust–Mahoning Open Pit Iron Mine]
  • A. Hull–Rust–Mahoning Open Pit Iron Mine chosen
    The Hull–Rust–Mahoning Open Pit Iron Mine is one of the world’s largest open-pit iron ore mines and a historically significant mining site on Minnesota’s Mesabi Range.
  • B. Gunnislake Clitters mine
    Gunnislake Clitters mine is a historic metal mine in Cornwall, England, known for its 19th-century extraction of copper, tin, and other ores as part of the region’s rich mining heritage.
  • C. Andoom Mine
    Andoom Mine is a major bauxite mining operation near Weipa in Queensland, Australia, contributing significantly to the region’s aluminum ore production.
  • D. Tioga Mine
    Tioga Mine was a historic silver mining operation in the Sierra Nevada of California that gave its name to nearby Tioga Pass.
  • E. Cliffs Shaft Mine
    Cliffs Shaft Mine is a historic iron ore mine and museum in Ishpeming, Michigan, notable for its iconic concrete Egyptian Revival headframes and role in the Marquette Iron Range’s mining heritage.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e0b4b2aa788190ae9eb37c1d73b1f1 completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e69dcd74c48190b050e25c20154c09 completed April 20, 2026, 9:42 p.m.
Created at: April 16, 2026, 11:36 a.m.