define servicegroup {
    servicegroup_id                    1
    servicegroup_name                  servicegroup_1
    alias                           servicegroup_1
    members                         host_3,service_11,host_3,service_12
}
define servicegroup {
    servicegroup_id                    2
    servicegroup_name                  servicegroup_2
    alias                           servicegroup_2
    members                         host_2,service_9,host_2,service_10
}
