":name has sent you a group validation request", "accepted_group_validation_request" => ":name has accepted your group validation request", "group_deleting_request" => ":name has sent you a group deleting request", "accepted_group_deleting_request" => ":name has accepted your group deleting request", "refused_group_validation_request" => ":name has refused your group validation request", "refused_group_deleting_request" => ":name has refused your group deleting request", "group_membership_request" => ":name has sent you a group membership request", "accepted_group_membership_request" => ":name has accepted your group membership request", "refused_group_membership_request" => ":name has refused your group membership request", ];