-hou -vac a-do a-ha aaaa aaac aaad aaah aaap aaav aaca aacc aacd aach aaco aacp aacu aacv aada aadc aadu aaha aaoo aapa aapc aaph aapo aaup aava acaa acac acad acap acca accc accd acch acco accp accu acda acdc acdp acha achh acho achp achu acoa acod acoh acop acou acpa acpd acpu acu- acuo acup acvv adaa adac adad adah adao adap adcc adda addc addd addo addu adha adhd adho adhu adoc adod adoo adp- adua ahac ahad ahah ahau ahha ahoa ahod ahop ahpu ahua ahva aoah aoca aodh aopo apac apah apao apap apca apcc apcd apco apda apdd apdu aph- apha aphc apo- apoc apod apoo apop apou appa appc appd apph appu apua apuc apud apup auaa auca auch aucp audc audh audo aupc avao avcc avco avda avdp avou avpu avva avvo c-cd caaa caac caah caap cac- caca cacc cach caco cada cadc cadd cado cadu caha caod capa capc capd caph capo capp capu cauc cauo caup cava cavo cavu ccaa ccac ccad ccap ccca cccc cccp cccu cccv ccdc ccdh ccdp ccha cchp ccoc ccod ccpa ccpp ccuc ccup ccvo cdaa cdac cdad cdda cdvd chaa chac chad chah chao chap chau chav chca chch chcp chha choc chod choh choo chop chou chov chpa chpp chua chud chvo coad coca coch coco cocp cocu coda codd coha coho cood cooh coop copa copd coph copo copp coua coud coup cova covo cpaa cpac cpad cpap cpca cpcu cpha cppa cppd cpvc cuau cuca cucc cuda cupo cupp cvac cvca cvcc daad daap daau daca dada dado dadu daha dahp dahu daou dapa dapp dapu daud dava dcca dccc dccp dccu dccv dcop dcpo dcup dcvd dddd ddoc ddpo dhaa dhad dhao dhap dhau dhcp dhod doap doca doch doco docu dod- doda dodd dodo doha dohc dood doop dopa dopo dopp douc doud doup dpaa dpac dpcp dphp dppa dppc dpph duaa duad duah duca duch duco duda dudd dudo dudu duha duhu duo- dupa dupo duva dvda dvoa haad haco hada hadh hadu haha haho hapa happ hapu hau- haud hava hcap hcca hccc hcch hcpc hdca hdda hdoc hdod hhaa hhhh hhpa hhpc hoac hoad hoap hoca hoch hoda hodh hoha hoho hood hoop hopa hopo hopp houd houp hova hpac hpao hpcc hpdh huac huah huch hucu huda hudd hudo hudu huhu hupa hupp hvac hvcc oaau oahp oahu oaph ocac ocad ocap occa occc ocha ocpa ocpd ocpp odac odah odda oddd odoh odoo odop odou odva ohad ohau ohcc ohho ohoh ooaa ooda ooha ooho oooh oooo opah opap opca opo- oppa oppo opua ouac ouad oucc ouch oudc oudh oupa ouph oupv ouu- ovda ovhd ovo- ovod ovoo ovpp paap paca pacd pach paco pacu pada padd pado padu paha paho pahp pahu paoc paoh papa papp paua paud pauh paup pava pavo pcaa pcad pcap pcca pccc pcha pchp pcoa pcod pcpp pdac pdca pdcp pdoc pdpa phad phah phcc phoh phoo phpa phua poad poca pocd poch poco pod- poda podd podo podu poha pood pooh poop pop- popa popc popo popp poud poup povo ppac ppad ppap ppcc ppcd ppoa ppod pppa pppd pppo pppp puah puao puca puch pudo pudu puha pupa pupu puuc pvco pvda pvdc pvpa uaca uaoc uaua ucad ucav ucca uccp ucdc ucdd ucha ucho ucpa ucph ucua udaa udad udau udca udoh udoo udop udpd uh-d uhoh uhuh uhup uocc uovo upac upca upda updo uppa uppc uppp uppu upup upvc uucp uuoc uuuu uv-a uv-c uvaa uvac uvda uvvu vaad vaca vach vaco vada vado vadu vaho vahp vapa vaud vava vdcc vdcp vhhh voad voca voda vodo voho vohu vooc voud vouh vuca vuco vuda vudu vvvv