[ llGetListLength(llDeleteSubList((list)llSetRegionPos(<0., 0., 0.>), 0, -1))
, llGetListLength(llListReplaceList((list)llSetRegionPos(<0., 0., 0.>), [], 0, -1))
, 0
, 0
, llGetListLength(llDeleteSubList(llGetLinkPrimitiveParams(-4, [1, 2, 3]), 0, -2))
]