Triple
T21479454
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Rio Tinto |
E529949
|
entity |
| Predicate | subsidiary |
P258
|
FINISHED |
| Object | Rio Tinto Iron Ore |
—
|
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: Rio Tinto Iron Ore | Statement: [Rio Tinto, subsidiary, Rio Tinto Iron Ore]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rio Tinto Iron Ore Context triple: [Rio Tinto, subsidiary, Rio Tinto Iron Ore]
-
A.
Kumba Iron Ore
Kumba Iron Ore is a South African mining company that is one of the continent’s largest producers and exporters of high-quality iron ore.
-
B.
Pilbara iron ore mines
Pilbara iron ore mines are a vast network of large-scale open-pit iron ore operations in Western Australia that form one of the world’s major sources of seaborne iron ore.
-
C.
Rio Tinto
Rio Tinto is a leading global mining and metals company headquartered in the United Kingdom and Australia, known for producing iron ore, aluminum, copper, and other minerals.
-
D.
Hamersley Group
The Hamersley Group is a major sequence of ancient sedimentary and volcanic rocks in Western Australia renowned for its extensive banded iron formations and rich iron ore deposits.
-
E.
Grasberg mine
Grasberg mine is one of the world’s largest gold and copper mines, located in the highlands of Papua, Indonesia.
- 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: Rio Tinto Iron Ore Target entity description: Rio Tinto Iron Ore is the iron ore mining and processing division of Rio Tinto, operating major mines and export facilities primarily in Western Australia to supply global steel producers.
-
A.
Kumba Iron Ore
Kumba Iron Ore is a South African mining company that is one of the continent’s largest producers and exporters of high-quality iron ore.
-
B.
Pilbara iron ore mines
Pilbara iron ore mines are a vast network of large-scale open-pit iron ore operations in Western Australia that form one of the world’s major sources of seaborne iron ore.
-
C.
Rio Tinto
chosen
Rio Tinto is a leading global mining and metals company headquartered in the United Kingdom and Australia, known for producing iron ore, aluminum, copper, and other minerals.
-
D.
Hamersley Group
The Hamersley Group is a major sequence of ancient sedimentary and volcanic rocks in Western Australia renowned for its extensive banded iron formations and rich iron ore deposits.
-
E.
Grasberg mine
Grasberg mine is one of the world’s largest gold and copper mines, located in the highlands of Papua, Indonesia.
- F. None of above.
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_69e0c45acc3881908e38d3f28964152b |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69e9ea1a37a88190845810cbcacbad65 |
completed | April 23, 2026, 9:44 a.m. |
Created at: April 16, 2026, 6:20 p.m.