The first concerns matrimonial law and hereditary law among other topics relating to Christians in the world.[1] His sources were listed as "the fathers, catholicoi, metropolitans and the Greek emperors".[3] Of the 48 questions in this part, only the last 28 survive in their original form.[2] The second part concerns the liturgy and institutions of the church, such as monasteries, hospitals and schools.[1] One of its most interesting questions concerns artisans' organizations, which includes some Arabic terminology.