roob rood roog rooi roor root rore rori roro rort roru rote rotg roti roto rotr rott roub roud roue rout rred rrrr rtdt rtee rtei rubb rube rubi rubu rudd rude rudi rudo rued ruer ruet ruge rugg rugi ruid ruit rurd rure ruri ruro ruru rute ruti ruto rutt rutu ruud tbit tbrb tddb tdor tdri tebo tebu tedd tede tedi teed teer teet tegg tegi tego tegt tegu teie teir teiu teor ter- tere teri tero terr teru tete teti teto tetr tett tetu teut tibi tibu tidd tide tie- tied tiee tiei tieo tier tiet tige tigi tigr tiit tiiu tiou tirb tird tire tiri tiro tirr tiru tite titi tito titt titu tobe tobi tobo tobt tobu todd tode todi todo todt todu toed toee toei toer toet toge togo togr togt toid toie toit tood toor toot tord tore torg tori toro torr tort toru totd tote toti toto totr tott toug toui tour tout tre- tred tree treg trei treo tret treu trge tri- trib trie trig trio trit trod troe trog troi troo trot trou trte trtr trub trud true trug trut truu ttbb tteo tter ttoe tttt tubb tube tubo tubr tubu tude tudi tudu tuei tuer tuet tugg tugu tuig tuit tuiu tuor turb turd ture turg turi turo turr turt turu tute tuti tuto tutt tutu tuuo u-ie ubbe ubbi ubbo uber ubet ubid ubii ubir ubit ubod ubud uddi uder udet udgb udge udid udig udir udoo udot ueir ugeo uggo uggt ugod ugri ugro ugur uguu uige uirr uor- uore urbe urbi urde urdu ure- ured uret urge urgi urgu urib urie uriu uro- uroo urre urri urte urur urut uter utid utor utri utti utto uttu utug uuri uuuu