Triple
T20884020
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Combustion Institute |
E514225
|
entity |
| Predicate | headquartersLocation |
P62
|
FINISHED |
| Object | Pittsburgh, Pennsylvania, United States |
—
|
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: Pittsburgh, Pennsylvania, United States | Statement: [Combustion Institute, headquartersLocation, Pittsburgh, Pennsylvania, United States]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pittsburgh, Pennsylvania, United States Context triple: [Combustion Institute, headquartersLocation, Pittsburgh, Pennsylvania, United States]
-
A.
Pittsburgh, Pennsylvania
chosen
Pittsburgh, Pennsylvania is a major U.S. city in western Pennsylvania known for its historic steel industry, numerous bridges, and strong educational and technology sectors.
-
B.
East Pittsburgh, Pennsylvania
East Pittsburgh, Pennsylvania is a small borough in Allegheny County near Pittsburgh, historically known for its role in the region’s steel and industrial economy.
-
C.
Aliquippa, Pennsylvania, United States
Aliquippa, Pennsylvania, United States, is a small industrial city in Beaver County near Pittsburgh, historically known for its steel mills and as the hometown of several notable athletes.
-
D.
Duquesne, Pennsylvania
Duquesne, Pennsylvania is a small industrial city along the Monongahela River near Pittsburgh, historically known as a major steel-producing community in the American Rust Belt.
-
E.
Downtown Pittsburgh
Downtown Pittsburgh is the city’s central business district, known for its dense cluster of skyscrapers, cultural venues, and its location at the confluence of the Allegheny, Monongahela, and Ohio Rivers.
- 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_69e0b4f733f081908a401c0b7beb0b9f |
completed | April 16, 2026, 10:07 a.m. |
| NER | Named-entity recognition | batch_69e6c67bd32c819097301e330e358c49 |
completed | April 21, 2026, 12:36 a.m. |
Created at: April 16, 2026, 12:46 p.m.