Calculate 
when defined. 
Definitions:
Norman Foster
A contemporary British architect known for his sleek, modern designs that incorporate high-tech elements, emphasizing sustainability.
30 St Mary Axe
A skyscraper in London's financial district, also known as "The Gherkin" for its distinctive curved shape.
Abu Ghraib
A prison located in Iraq, notorious for the human rights abuses and torture that occurred there during the Iraq War.
Columbian Artist
This likely refers to an artist originating from Colombia; however, since "Columbian" could also mean related to Christopher Columbus, specify if it's Colombian for accurate information.
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