+ AND NOT EXISTS(SELECT `uri-id` FROM `event` WHERE `uri-id` = `item-uri`.`id`)
+ AND NOT EXISTS(SELECT `uri-id` FROM `user-contact` WHERE `uri-id` = `item-uri`.`id`)
+ AND NOT EXISTS(SELECT `uri-id` FROM `contact` WHERE `uri-id` = `item-uri`.`id`)
+ AND NOT EXISTS(SELECT `uri-id` FROM `apcontact` WHERE `uri-id` = `item-uri`.`id`)
+ AND NOT EXISTS(SELECT `uri-id` FROM `fcontact` WHERE `uri-id` = `item-uri`.`id`)