 
 <prompt> How sustainable architecture dey defined? Based on di question wey dey before, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: For late 20th century, dem add new concept to di ones wey dey inside structure and function, wey be sustainability, so na im be sustainable architecture. To meet up with di current way of life, building suppose dey constructed in a way wey dey friendly to di environment for how e dey produce materials, di impact wey e get on di natural and built environment of di area wey dey around am, and di demands wey e dey make on non-sustainable power sources for heating, cooling, water and waste management and lighting. 