Complex sentence: Quirinus is thus concerned with wheat, a staple food, and cooperates with god Consus, as testified by the role of his flamen in the Consualia, to the aim of assuring the nurture of the Roman people.
Split into simpler sentences: Quirinus is thus concerned with wheat, a staple food. He cooperates with god Consus, as testified by the role of his flamen in the Consualia, to the aim of assuring the nurture of the Roman people.