-vac a-do a-ha aaaa aaac aaad aaah aaar aaav aaca aacc aacd aach aaco aacr aacv aada aadc aaha aaoo aara aarc aard aaro aava acaa acac acad acar acca accc accd acch acco acda acdc acha achh acho achr acoa acod acoh acor acr- acra acrc acro acrr acrv acvv adaa adac adad adah adao adar adcc adda addc addd addo addr adha adhd adho adoc adod adoo ador adra adro ahac ahad ahah ahar ahha ahoa ahod ahor ahra ahrc ahrr ahva aoah aoca aodh aora arac arad arah arar arc- arca arch arco arda ardc ardo arh- aroa arod aroo aror arr- arra arrc arrh arro arrr arva arvo avao avar avcc avco avda avor avra avro avva avvo c-cd caaa caac caah cac- caca cacc cach caco cacr cada cadc cadd cado cadr caha caod caor cara carc card caro carr cava cavo ccaa ccac ccad ccar ccca cccc cccv ccdc ccdh ccdr ccha cchr ccoc ccod ccra ccrc ccvo cd-r cdaa cdac cdad cdda cddr cdvd chaa chac chad chah chao char chav chca chch chha choc chod choh choo chor chov chra chrc chrd chro chrr chvo coad coca coch coco coda codd coha coho cood cooh cor- cora corc cord coro corr cova covo crac crar crca crcc crcr crda crdc croc crod croh croo cror cvac cvar cvca cvcc cvra cvrd cvrr daad daar daca dada dado daha dara darc dard daro darr dava dcca dccc dccv dcra dcvd dddd ddoc ddrc dhaa dhad dhao dhar dhod dhor doar doca doch doco dod- doda dodd dodo doha dohc dohr dood door dora dorc dord doro dorr draa drac drad drar drca drda drod droh drra dvar dvda dvdr dvoa dvor dvra haad haar haco hada hadh haha haho haor hara harc hard harh haro harr harv hava hcca hccc hcch hcdr hcrd hdca hdda hdoc hdod hdra hhaa hhhh hoac hoad hoar hoca hoch hocr hoda hodh hodr hoha hoho hood hoor hora horc hord horo horr hova hrac hrad hrdc hrod hrrc hvac hvar hvcc oara ocac ocad occa occc ocha ocra ocro ocrr odac odah odda oddd odoh odoo odor odra odva ohad ohcc ohho ohoh ohra ooaa oocr ooda ooha ooho oooh oooo oora oord orac orad orah orao orar orav orca orch orco orda ordo oro- oror orra orro orvr ovar ovda ovhd ovo- ovod ovoo ovra raad rac- raca racc rach raco racv rada radc radd radh rado radr raha rahr raoc raoh rara raro rava rcac rccc rcdc rcrd rcvr rdac rdoc rhoa rhoc rhod rhoh road roar roca rocc roch roco roda rodd rodo roha rohr rood roor rora rorc roro rova rovo rrad rrah rrrr rv-c rvca rvvh vaad vaar vaca vach vaco vada vado vaho vara vard varr vava vdcc vhhh voad voar voca voda vodo voho vooc voor vor- vora vord voro vrac vrav vroc vvvv