which appliance's cpu is krait and predecessor is nexus 7 ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_cpu dbr_Krait_ attr_open CPU attr_close sep_dot var_uri dbo_predecessor dbr_Nexus_7_ attr_open 2012 attr_close sep_dot var_uri a dbo_InformationAppliance brack_close