bbbb bbdd bbfn bbin bblb bdii bdin bduf bffl bibb bibi bibl bidi bidu bidx biff bifi biin bild bili bill bilu bin- bind bini binn binu bixi blin blix blni blub blud bluf bnib bnin bubb bubi bubu budb budd budi budl budu buff buid buif buin buiu buix bulb buld buli bull bulu bunb bund buni bunn bunu d-ix dbfx dbnl dddd ddub dibb didi didu dif- diff diii dilf dili dill din- dini dinn dinu diux dixi dlbd dlib dlii dlil dlix dlux dlxi dnix dub- dubb dubu dudd dudu duff dufu duid duif duil duin duli dull dulu dunn duul dxbl dxbn dxfx dxif dxii dxix dxli dxll dxnd dxnu dxxl dxxx ffff ffii ffun fidf fiff fifi fiii fiil fild fili fill filn find fini finn fixx flid flii flin flix flnb flub flud fluf flux fndd fndn fnuf fubb fubu fudd fudi fuff fufu fuid fuil fuli full fulu fund funf funx fuxi fuxl fxdd ibfi ibid idid idil idin idli idnx idub idun ifbb ifid ifil ifni iiii ilbx ilin ill- illd illi ilni ilud ilxx inbd ind- indi indu infi infl inid inni innu inui inul inun inxd iuiu ixil ixlu ixxi ldif libu libx lidb lidl liff lifl lifx liii liin lilb lili lill lilu lind linn linx liuf liun lixi lixu lldb llll llud lndn ludd ludi luff lufu luif luin luli lull lulu lund luni lunn luxi lxii lxxi lxxx n-ii nbfl nbuf nddb ndfi nfff nfib nfix nfld nibi nidd nidi niff niiu nild nili nill nilu nind nini ninl nixi nndb nnnn nubi nubl nudd nudi nuff nufx nuin nuix nuli null nunn nxdn ubbi ubid ubii ubli ubud uddi udid udin udun ulli ulul unbd undi unfd uni- unif unii unin unix unlf unni uulu uuni uuuu uxul x-fi xbin xdin xdxf xfin xibu xidi xiii xil- xili xill xinu xixi xldb xlib xlii xlix xuld xuxu xxii xxix xxxi xxxx