which appliance's cpu is snapdragon and predecessor is samsung galaxy tab 2 7 . 0 ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_cpu dbr_Snapdragon_ attr_open system_on_chip attr_close sep_dot var_uri dbo_predecessor dbr_Samsung_Galaxy_Tab_2_7.0 sep_dot var_uri a dbo_InformationAppliance brack_close