Triple
T9130345
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tahawus |
E219069
|
entity |
| Predicate | developedBy |
P73
|
FINISHED |
| Object | National Lead Company |
E543501
|
NE FINISHED |
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: National Lead Company | Statement: [Tahawus, developedBy, National Lead Company]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: National Lead Company Context triple: [Tahawus, developedBy, National Lead Company]
-
A.
National Lead of Ohio
chosen
National Lead of Ohio was a company that managed uranium processing operations for the U.S. government, notably running the Fernald Feed Materials Production Center during the Cold War.
-
B.
Union Carbide Corporation
Union Carbide Corporation is a major American chemical company best known for its role in the 1984 Bhopal disaster and for producing a wide range of industrial chemicals and polymers.
-
C.
Koppers
Koppers is an American industrial company historically known for producing coal tar chemicals, treated wood products, and materials for the steel and aluminum industries.
-
D.
Mallinckrodt Chemical Works, St. Louis
Mallinckrodt Chemical Works in St. Louis was a key industrial facility that processed uranium and other materials for the U.S. nuclear weapons program during the Manhattan Project.
-
E.
Pittsburgh Plate Glass Company
Pittsburgh Plate Glass Company is a major American glass and coatings manufacturer, historically known as one of the world’s leading producers of flat glass and related industrial materials.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca83debfc0819095800583e97ab10f |
completed | March 30, 2026, 2:08 p.m. |
| NER | Named-entity recognition | batch_69cca8cdafb48190be5e62b15779d771 |
completed | April 1, 2026, 5:10 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d030aee3cc81908e883c0bc399fb96 |
completed | April 3, 2026, 9:27 p.m. |
Created at: March 30, 2026, 7:18 p.m.