Complex sentence: The PNCC permits its clergy to be married, and in practice encourages them to be so, as it is commonly believed that a married priest will have a better understanding of the marital issues facing his parishioners.
Split into simpler sentences: The PNCC permits its clergy to be married, and in practice encourages them to be so. They believe that a married priest will have a better understanding of the marital issues facing his parishioners.