 
 <prompt> Wetin be di city wey dey house di commercial arm of RIBA wey no dey registered? Based on di question wey dey top, write small tori wey get di answer. E fit be 1 - 20 sentences. Context: <response>: ```RIBA Enterprises na di commercial arm of RIBA, with office for Newcastle upon Tyne, base for 15 Bonhill Street for London, and office for Newark. Dem get over 250 staff, about 180 dey based for Newcastle.``` 