a-do aaaa aaab aaad aaar aaas aaav aaba aabb aabd aada aads aaoo aara aard aaro aars aasa aasd aass aava abaa abab abad abar abas abb- abba abbb abbo abbr abbs abda abdo aboa abob abod aboo abor abos abov abra abro abrs abs- absa absd abss abva abvd adaa adab adad adao adar adas adba adda addd addo addr adds adob adod adoo ador ados adra adro adrs adsa adso adsr adss advb advs aoba aora aorb aors aosd aoss arab arad arar aras arba arbs arda ardo ards aroa arob arod aroo aror aros arr- arra arro arrr arrs ars- arsa arsd arso arva arvo asaa asab asad asao asar asas asba asbo asda asdo asds asob asod asor asos asra asro asrs assa assd asso assr asss asva asvd asvs avab avao avar avas avda avor avos avra avro avva avvo baaa baad baar baas baba babb babo babr babs bada badb badd bado badr bads baos bar- bara barb bard baro barr bars basa baso bass bava bbad bbas bbbb bbbs bbdd bbdo bd-r bdav bdos bdsd boab boad boar boas boba bobb bobo bobs boda bodb bodo bods boob bood boor boos bor- bora bord boro borr bors bosa boso boss bova bovo brab brad brao bras brav brda brdo brds broa brob brod broo bror bros brrr brrs brsb brsr bsaa bsas bsbd bsod bsos bsra bsrd bssd bvds d-bo daab daad daar daas daba dabb dabo dabs dada dado dads daos dara darb dard daro darr dars dasa dasb dasd dass dava dbar dbas dbos dbrs dbsa dbss dddd ddss doab doar doas doba dobb dobs dod- doda dodd dodo dods doob dood door doos dora dord doro dorr dors dosa doso doss draa drab drad drar dras drba drda drob drod drra drrs drsa dsba dsda dsdr dsoa dsos dsrr dssa dsvd dvar dvas dvbs dvda dvdr dvds dvoa dvor dvra dvrs dvsr oara oars oass oavs obad obas obba obbo obor obos obra obro obsd obsr obss obvs odas odbo odda oddd odds odoo odor odos odra odso odva ooaa ooba ooda oooo ooos oora oord oosa orab orad orao orar oras orav orba orbb orbo orbs orda ordo ords oro- oror oros orra orro orrs orsa orso orvr orvs osar osas osba osdv osoo osor osos osov osrd osro ossa ossb ossd osso ovar ovda ovo- ovod ovoo ovra raab raad raas raba rabb rabo rabs rada radd rado radr rads raob raos rara rarb raro rars rasa rasd raso rass rava rbbb rbbr rbbs rbds rbsd rbss rdas rdos rdso rdvs roab road roar roas rob- roba robb robo robs roda rodd rodo rods roob rood roor roos rora roro rosa roso ross rova rovo rovs rrad rras rrrr rsaa rsdd rsds rsos rssa s-os saab saad saar saas saba sabb sabo sabr sabs sada sadb sadd sado sadr sads saor saos sara sard saro sarr sars sarv sasa sasd saso sass sava savo savs sbaa sbar sbas sbbs sbds sbor sbsa sbsd sdba sdds sdrs sdss soad soar soas soba sobo sobr sobs soda sodd sodo sods sood soor soos sora sorb sord soro sorr sors sosa soso soss sosv sova sovo sovs sras sros srsd ssaa ssab ssao ssas ssbr ssdd ssra ssrs sssa sssb ssss svar svdo svod svor vaad vaar vaas vabs vada vado vads vara vard varr vars vas- vasa vaso vass vava vavs vdso voad voar voda vodo voor vor- vora vord voro vors vosa voso voss vras vrav vrba vrsa vvob vvsb vvvv