sentences:  The Restored Toungoo kings, now based in Ava (Inwa), created a legal and political system whose basic features would continue under the Konbaung dynasty well into the 19th century.The crown completely replaced the hereditary chieftainships with appointed governorships in the entire Irrawaddy valley and greatly reduced the hereditary rights of Shan chiefs.Its trade and secular administrative reforms built a prosperous economy for more than 80 years.