"The sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose....And they bare children to them; the same became mighty men, which were of old, men of renown." – Gen. 6:2,4.

Dalili da aka ba aka ba da sassan yankunan da suka dace wanda masu sayarwa za su iya amfani da su don gudanar da bincike da gwada gwagwarmayar fasahar su da kuma inganta sakon su don sake tabbatar da masu amfani.
