Table: war_name
Columns: name_of_the_war
ottoman_sultan
persian_shah
treaty_at_the_end_of_the_war
victor

Question: How many victors where there in the War of 1730–1736 , first stage?
SQL: SELECT COUNT("victor") FROM war_name WHERE "name_of_the_war" = 'War of 1730–1736 , first stage'

Question: Who was the Ottoman Sultan where the treaty at the end of the war was the Treaty of Constantinople (1590)?
SQL: SELECT "ottoman_sultan" FROM war_name WHERE "treaty_at_the_end_of_the_war" = 'Treaty of Constantinople (1590)'

Question: What is the name of the war where the Ottoman sultan was Selim I?
SQL: SELECT "name_of_the_war" FROM war_name WHERE "ottoman_sultan" = 'Selim I'