Statements (12)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
nickname
|
| gptkbp:associatedWith |
gptkb:steel
industrial era |
| https://www.w3.org/2000/01/rdf-schema#label |
Smoky City
|
| gptkbp:location |
gptkb:United_States
|
| gptkbp:nickname |
gptkb:Pittsburgh
historical air pollution |
| gptkbp:refersTo |
gptkb:Pittsburgh
|
| gptkbp:usedDuring |
19th century
early 20th century |
| gptkbp:bfsParent |
gptkb:Structurally_Sound
|
| gptkbp:bfsLayer |
7
|