rule "lookupSetValue"
when
  true
then
  let present = lookup_has_value("table", "present");
  let absent = lookup_has_value("table", "absent");
  let empty = lookup_has_value("table", "empty");
  set_field("check_present", present);
  set_field("check_absent", absent);
  set_field("check_empty", empty);
end
