wood is a mean of spiritual made by men & a wood plate is made of wood ->  a plastic spoon is made of a material that is made by humans  artificial dogma grown in city & made by men / artificial is the synonym of artificial ->  if something is made by humans then that something is not grown in nature  a plastic spoon is made of a material that is made by humans & if something is made by humans then that something is not grown in nature -> a plastic spoon is made of material that is not grown in nature