dddd didi dido didu dif- diff diii din- dini dinn dino dinu dion diou dod- dodd dodi dodo doff doid doin dond doni donn dono dood doof doon doud douf doun dudd dudo dudu duff dufu duid duif duin dunn duno duo- duon ffff ffii ffun fidf fido fiff fifi fifo fiii find fini finn fino fion fndd fndn fnuf fofo foid foin fond fono food foof foon foud foun fudd fudi fuff fufu fuid fund funf i-no iddo idid idin idio idno idon idun iduo ifid ifni ifno iiii iiio iino iioi iioo ind- indi indo indu infi info inid inni inno innu ino- inoi inon inou inui inun iod- iodd iodo ioii ioio ioni ionn iono ioof iooi iooo ioun iuiu iuno n-ii nddo ndfi nfff nfon nidd nidi nido niff niiu nind nini nino nion nioo niou nnnn nodi nodo nodu nofi noid noif noin noio non- noni nonn nono nonu noo- noon nooo noun nudd nudi nudo nuff nuin nunn nuno nuon oddd oddi odin odio odiu odon odoo odou off- offo offu ofid ofno oido oiii oion ondi ondo onni onno onod onon oodi ooff ooid oooo ouff ouii ouin oun- ound ouu- uddi udid udin udon udoo udun undi undo unfd uni- unif unii unin unio unni unno unon uofo uuni uuno uuuu