Triple
T20560392
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ombilin Coal Mining Heritage of Sawahlunto |
E504828
|
entity |
| Predicate | contains |
P35
|
FINISHED |
| Object | Ombilin coal mine |
—
|
NE NERFINISHED |
How this triple was built (3 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: Ombilin coal mine | Statement: [Ombilin Coal Mining Heritage of Sawahlunto, contains, Ombilin coal mine]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ombilin coal mine Context triple: [Ombilin Coal Mining Heritage of Sawahlunto, contains, Ombilin coal mine]
-
A.
Moura coal mine
Moura coal mine is a major coal mining operation in Central Queensland, Australia, known for its large-scale production and significant role in the region’s coal industry.
-
B.
Ok Tedi Mine
Ok Tedi Mine is a large open-pit copper and gold mine in Papua New Guinea, widely known for its significant environmental impacts on the surrounding river systems and communities.
-
C.
Usibelli Coal Mine
Usibelli Coal Mine is Alaska’s largest coal mining operation, known for supplying coal to local power plants and for export from its surface mines near Healy.
-
D.
Bogdanka coal mine
Bogdanka coal mine is one of Poland’s largest and most modern hard coal mines, located in eastern Poland and known for its high efficiency and significant role in the country’s energy sector.
-
E.
Tongarra Coal
Tongarra Coal is a coal seam within the geological sequence of the Illawarra region in New South Wales, Australia, known for its role in local coal mining and stratigraphy.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ombilin coal mine Target entity description: The Ombilin coal mine is a historic coal mining site in Sawahlunto, West Sumatra, Indonesia, recognized as part of a UNESCO World Heritage complex for its industrial heritage and colonial-era mining infrastructure.
-
A.
Moura coal mine
Moura coal mine is a major coal mining operation in Central Queensland, Australia, known for its large-scale production and significant role in the region’s coal industry.
-
B.
Ok Tedi Mine
Ok Tedi Mine is a large open-pit copper and gold mine in Papua New Guinea, widely known for its significant environmental impacts on the surrounding river systems and communities.
-
C.
Usibelli Coal Mine
Usibelli Coal Mine is Alaska’s largest coal mining operation, known for supplying coal to local power plants and for export from its surface mines near Healy.
-
D.
Bogdanka coal mine
Bogdanka coal mine is one of Poland’s largest and most modern hard coal mines, located in eastern Poland and known for its high efficiency and significant role in the country’s energy sector.
-
E.
Tongarra Coal
Tongarra Coal is a coal seam within the geological sequence of the Illawarra region in New South Wales, Australia, known for its role in local coal mining and stratigraphy.
- F. None of above. chosen
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_69e0b4b6587c8190aee63dc7cff244ea |
completed | April 16, 2026, 10:06 a.m. |
| NER | Named-entity recognition | batch_69e6a79d93148190b038814af0a4649a |
completed | April 20, 2026, 10:24 p.m. |
Created at: April 16, 2026, 11:38 a.m.