,bert,[working(bert,shop_alarm)]),
     ss(burglar,harry,[casing_joint(harry),expertise(harry,motion_detector)]),
     ss(burglar,dick,[casing_joint(dick),expertise(dick,motion_detector)]),
     ss(valuable_item,gold,[protected(gold),protected_by(gold,motion_detector)])]).
planner_task(4,
    % Goals
    [
     se(valuable_item,gold,[gone(gold)]),
     se(valuable_item,diamond,[gone(diamond)]),
     se(valuable_item,artifact,[gone(artifact)]),
     se(valuable_item,fave_dvd,[gone(fave_dvd)]),
     se(burgla