 
 <prompt> Wetin dey happun wen sun don set? Based on di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: ```For nature, di red color of blood dey come from hemoglobin, di iron-containing protein wey dey inside di red blood cells of all vertebrates. Di red color of di Grand Canyon and other geological features na because of hematite or red ochre, both forms of iron oxide. E still dey cause di red color of di planet Mars. Di red sky for sunset and sunrise na because of an optical effect wey dem dey call Rayleigh scattering, wey, when di sun dey low or below di horizon, e dey increase di red-wavelength light wey dey reach di eye. Di color of autumn leaves na because of pigments wey dem dey call anthocyanins, wey dey produced towards di end of summer, when di green chlorophyll no dey produced again. One to two percent of di human population get red hair; di color dey produced by high levels of di reddish pigment pheomelanin (wey also dey account for di red color of di lips) and relatively low levels of di dark pigment eumelanin.``` 