Triple
T4964637
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pittsburgh Locomotive and Car Works |
E111491
|
entity |
| Predicate | locatedInMetropolitanArea |
P294
|
FINISHED |
| Object | Pittsburgh metropolitan area |
E1400
|
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: Pittsburgh metropolitan area | Statement: [Pittsburgh Locomotive and Car Works, locatedInMetropolitanArea, Pittsburgh metropolitan area]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pittsburgh metropolitan area Context triple: [Pittsburgh Locomotive and Car Works, locatedInMetropolitanArea, Pittsburgh metropolitan area]
-
A.
Pittsburgh region
chosen
The Pittsburgh region is a historically significant industrial area in western Pennsylvania, long known as a major center of steel production and manufacturing.
-
B.
Pittsburgh, Pennsylvania
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.
-
C.
Erie metropolitan area
The Erie metropolitan area is a regional urban and economic hub in northwestern Pennsylvania centered on the city of Erie along the shores of Lake Erie.
-
D.
Metropolis of Pittsburgh
The Metropolis of Pittsburgh is an ecclesiastical jurisdiction of the Greek Orthodox Archdiocese of America overseeing Greek Orthodox parishes in parts of the northeastern United States.
-
E.
Cincinnati metropolitan area
The Cincinnati metropolitan area is a multi-state urban and suburban region centered on the city of Cincinnati, encompassing parts of Ohio, Kentucky, and Indiana and serving as a major economic and cultural hub of the Midwest.
- 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_69bd4419393c819086319a6fe4bf8542 |
completed | March 20, 2026, 12:56 p.m. |
| NER | Named-entity recognition | batch_69bd71f693b48190b3523cd314303cbe |
completed | March 20, 2026, 4:12 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bf06982c5081908c275019c5d6b1c1 |
completed | March 21, 2026, 8:59 p.m. |
Created at: March 20, 2026, 1:32 p.m.