Triple

T8299886
Position Surface form Disambiguated ID Type / Status
Subject Burns Harbor, Indiana E194323 entity
Predicate hasMajorEmployer P588 FINISHED
Object Cleveland-Cliffs Burns Harbor steel mill
The Cleveland-Cliffs Burns Harbor steel mill is a large integrated steel production facility in Burns Harbor, Indiana, and one of the region’s primary industrial employers.
E724542 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: Cleveland-Cliffs Burns Harbor steel mill | Statement: [Burns Harbor, Indiana, hasMajorEmployer, Cleveland-Cliffs Burns Harbor steel mill]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Cleveland-Cliffs Burns Harbor steel mill
Context triple: [Burns Harbor, Indiana, hasMajorEmployer, Cleveland-Cliffs Burns Harbor steel mill]
  • A. U.S. Steel Gary Works complex
    The U.S. Steel Gary Works complex is a major integrated steel production facility in Gary, Indiana, historically one of the largest steel mills in the world and a cornerstone of American heavy industry.
  • B. Great Lakes steel mills
    Great Lakes steel mills are large industrial facilities located along the Great Lakes that process iron ore into steel for use in manufacturing, construction, and automotive production across North America.
  • C. Bethlehem Steel Sparrows Point steel mill
    Bethlehem Steel Sparrows Point steel mill was once one of the world’s largest steel-producing complexes, located on the Sparrows Point peninsula near Baltimore, Maryland, and a major center of American industrial manufacturing in the 20th century.
  • D. U.S. Steel Mon Valley Works
    U.S. Steel Mon Valley Works is an integrated steel production complex in Pennsylvania operated by United States Steel Corporation, encompassing multiple facilities that manufacture and finish steel products for various industrial markets.
  • E. Homestead Steel Works
    Homestead Steel Works was a major 19th- and early 20th-century steel mill near Pittsburgh, Pennsylvania, best known as a centerpiece of Andrew Carnegie’s steel empire and the site of the 1892 Homestead Strike, a pivotal event in U.S. labor history.
  • 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: Cleveland-Cliffs Burns Harbor steel mill
Triple: [Burns Harbor, Indiana, hasMajorEmployer, Cleveland-Cliffs Burns Harbor steel mill]
Generated description
The Cleveland-Cliffs Burns Harbor steel mill is a large integrated steel production facility in Burns Harbor, Indiana, and one of the region’s primary industrial employers.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Cleveland-Cliffs Burns Harbor steel mill
Target entity description: The Cleveland-Cliffs Burns Harbor steel mill is a large integrated steel production facility in Burns Harbor, Indiana, and one of the region’s primary industrial employers.
  • A. U.S. Steel Gary Works complex
    The U.S. Steel Gary Works complex is a major integrated steel production facility in Gary, Indiana, historically one of the largest steel mills in the world and a cornerstone of American heavy industry.
  • B. Great Lakes steel mills
    Great Lakes steel mills are large industrial facilities located along the Great Lakes that process iron ore into steel for use in manufacturing, construction, and automotive production across North America.
  • C. Bethlehem Steel Sparrows Point steel mill
    Bethlehem Steel Sparrows Point steel mill was once one of the world’s largest steel-producing complexes, located on the Sparrows Point peninsula near Baltimore, Maryland, and a major center of American industrial manufacturing in the 20th century.
  • D. U.S. Steel Mon Valley Works
    U.S. Steel Mon Valley Works is an integrated steel production complex in Pennsylvania operated by United States Steel Corporation, encompassing multiple facilities that manufacture and finish steel products for various industrial markets.
  • E. Homestead Steel Works
    Homestead Steel Works was a major 19th- and early 20th-century steel mill near Pittsburgh, Pennsylvania, best known as a centerpiece of Andrew Carnegie’s steel empire and the site of the 1892 Homestead Strike, a pivotal event in U.S. labor history.
  • 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_69ca82e50ebc81909aa7b260c76bd757 completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb7e879c588190a6f95cf7795541ad completed March 31, 2026, 7:57 a.m.
NED1 Entity disambiguation (via context triple) batch_69cd68bcb43081909e3a8a00947d03f2 completed April 1, 2026, 6:49 p.m.
NEDg Description generation batch_69cd6d574ba88190a2538897d201d8c4 completed April 1, 2026, 7:09 p.m.
NED2 Entity disambiguation (via description) batch_69cd7e536724819095ad006bc0f013a4 completed April 1, 2026, 8:21 p.m.
Created at: March 30, 2026, 5:53 p.m.