name a queen whose parent is nicetas and consort is constantine iii ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_parent dbr_Nicetas_ attr_open cousin_of_Heraclius attr_close sep_dot var_uri dbo_spouse dbr_Constantine_III_ attr_open Byzantine_emperor attr_close sep_dot var_uri a dbo_Royalty brack_close