a-ii a-iv aaaa aaab aaai aaar aaav aaba aabb aabi aaib aaii aaoo aara aari aaro aaru aava abaa abab abai abar abau abb- abba abbb abbi abbo abbr abia abib abir abiu aboa abob aboo abor abou abov abra abri abro abua abva aiai aiba aibo aiia aiib aiir aioi aira airi airo aiui aiva aoba aora aorb aqai aqar aqir aqra aqu- aqua aquo arab arai araq arar arau arba arbi aria arib arii ario aroa arob aroi aroo aror arq- arqa arr- arra arri arro arrr arru arua arub arui aruq arva arvi arvo auaa aur- aura auri auro avab avao avar avia avio aviv avor avou avra avri avro avui avur avva avvo ba-i baaa baar baba babb babi babo babr babu baia baib baio bair baqa bar- bara barb bari baro barq barr baru bau- baur bava bavi bavu bbau bbbb bbbq biao biar biba bibb bibi bibo bio- bioi biou biqi bira birb biri biro birr biru bivi boab boai boar boba bobb bobi bobo bobu boi- boii boiu boob boor bor- bora bori boro borr boru boua bour bova bovi bovo brab brai brao brau brav bria brio briq broa brob broo bror brou brrr bruv brvi buar buba bubb bubi bubo bubq bubu buir buiu buqa bur- bura burb buri buro burr buru iaaa iaai iaba iaia iara iaru iava ibar ibia ibra ibri ibro iiii iiio iioi iioo iira ioba iobi ioii ioio iooi iooo iora iori iqor irai irao iraq irar iri- iria irio irob irov irra irri iuiu iura ivai ivao ivar ivbv ivor oaau oara obai obba obbo obia oboi oboq obor obra obri obro obvi oiav oiba oiii oira ooaa ooba oobi ooia oooo oora oqui orab orai orao orar orav orba orbb orbi orbo orbu ori- oria orio oro- oror orra orri orro orub orvr ouii ouir our- oura ouro ouu- ovar ovi- ovo- ovoo ovra qabo qara qari qaru qiao qibo qira qiru qobu qoob qqqq qrio quaa quab quai quar quba qubi qubo quia quib quir quob quoi quor quri quro quu- quva qvar raab raba rabb rabi rabo rabu raia raii rair raiu raob rara rarb rari raro raua raub rava ravi rbbb rbbr riaa riab riai riau rib- riba ribo ribu riia riou riqq riri riva rivo roab roar rob- roba robb robi robo robu roia roio roir roiu roob rooi roor rora rori roro roru roua roub rova rovi rovo rrrr ruba rubb rubi rubu rura ruri ruro ruru ruvi ruvu uair uaru uaua ubar ubba ubbi ubbo ubii ubir ubra uira uirr uor- uovo uqao uqar urai urao urau urba urbi uria urib uriu uro- uroa uroo urra urri uruq urur urva uuri uuuu uv-a uv-b uvaa uvri uvvu vaar vaia vaio vair vaqo vara vari varr varu vava viar viau viii vira virb viri viro virr viru viva vivi vivo voar voia voio voir voor vor- vora vori voro voru vour vrai vrav vrba vria vrio vuir vurb vvob vvvv