-hou -vac a-ha aaaa aaac aaah aaar aaav aaca aacc aach aaco aacr aacu aacv aaha aaoo aara aarc aaro aaru aava acaa acac acar acca accc acch acco accu acha achh acho achr achu acoa acoh acor acou acr- acra acrc acro acrr acrv acu- acuo acur acvv ahac ahah ahar ahau ahha ahoa ahor ahra ahrc ahrr ahua ahva aoah aoca aora arac arah arar arau arc- arca arch arco arh- aroa aroo aror arr- arra arrc arrh arro arrr arru arua arva arvo auaa auca auch aur- aura auro avao avar avcc avco avor avou avra avro avur avva avvo caaa caac caah cac- caca cacc cach caco cacr caha caor cara carc caro carr cauc cauo cava cavo cavu ccaa ccac ccar ccca cccc cccu cccv ccha cchr ccoc ccra ccrc ccuc ccvo chaa chac chah chao char chau chav chca chch chha choc choh choo chor chou chov chra chrc chro chrr chua chur chvo coca coch coco cocu coha coho cooh cor- cora corc coro corr coua cour cova covo crac crar crau crca crcc crcr croc croh croo cror cuau cuca cucc cura curo curr cvac cvar cvca cvcc cvra cvrr haar haco haha haho haor hara harc harh haro harr haru harv hau- hava hcca hccc hcch hhaa hhhh hoac hoar hoca hoch hocr hoha hoho hoor hora horc horo horr hour hova hrac hrrc huac huah huch hucu huhu huor hura huro hurr huru hvac hvar hvcc oaau oahu oara ocac occa occc ocha ocra ocro ocrr ocur ohau ohcc ohho ohoh ohra ooaa oocr ooha ooho oooh oooo oora orac orah orao orar orav orca orch orco oro- oror orra orro orvr ouac oucc ouch our- oura ouro ouu- ovar ovo- ovoo ovra rac- raca racc rach raco racu racv raha rahr rahu raoc raoh rara raro raua rauc rava rcac rccc rcuv rcvr rhau rhoa rhoc rhoh roar roca rocc roch roco roha rohr rohu roor rora rorc roro roru roua rouh rova rovo rrah rrrr ruah ruca ruch ruhh ruhr rura rurc ruro ruru ruvu rv-c rvca rvvh uaca uaoc uarc uaru uaua ucar ucav ucca ucha ucho ucrc ucua uhoh uhuh uocc uor- uovo urac urao urau urca urch urho uro- uroa uroo urra urrh urur urva uuoc uuuu uv-a uv-c uvaa uvac uvvu vaar vaca vach vaco vaho vara varr varu vava vhhh voar voca voho vohu vooc voor vor- vora voro voru vouh vour vrac vrav vroc vuca vuco vvvv