a-do a-ii a-iv aaaa aaad aaai aaar aaav aada aadi aaii aaoo aara aard aari aaro aava adaa adad adai adao adar adda addd addi addo addr adia adio adir adod adoo ador adra adro advi aiai aida aidi aidr aiia aiid aiir aioi aira aird airi airo aiva aivd aora arad arai arar arda ardi ardo aria arid arii ario aroa arod aroi aroo aror arr- arra arri arro arrr arva arvi arvo avao avar avda avdi avia avid avio aviv avor avra avri avro avva avvo daad daar dada dadi dado daia daid daio dair dara dard dari daro darr dava davi dddd dia- diad diao diar dida didi dido diii diiv dior dira dird dirr diva divd divi divo doar dod- doda dodd dodi dodo doid dood door dora dord dori doro dorr dovi draa drad drar drda drod drra dvar dvda dvdr dvi- dvii dvir dvoa dvor dvra iaaa iaai iaia iara iava idad idar idda iddo idia idid idio idir idra idro idvd iida iiii iiio iioi iioo iira iod- ioda iodd iodo ioii ioio iooi iooo iora iori irad irai irao irar irda irdo iri- iria irid irio irod irov irra irri ivai ivao ivar ivda ivdr ivod ivor oara odai odda oddd oddi odia odio odir odoo odor odra odva oiav oido oiii oira ooaa ooda oodi ooia ooid oooo oora oord orad orai orao orar orav orda ordo ori- oria orid orio oro- oror orra orri orro orvr ovar ovda ovi- ovid ovo- ovod ovoo ovra raad rada radd rado radr raia raid raii rair rara rari raro rava ravi rdio riaa riad riai rida ridd ridi rido riia riri riva rivo road roar roda rodd rodi rodo roia roid roio roir rood rooi roor rora rori roro rova rovi rovo rrad rrrr vaad vaar vada vadi vado vaia vaid vaio vair vara vard vari varr vava vdio viad viar vida vidi vido viii vira viri viro virr viva vivi vivo voad voar voda vodo voia void voio voir voor vor- vora vord vori voro vrai vrav vrdi vria vrio vvvv