a-ha aaaa aaab aaah aaar aaav aaba aabb aabh aaha aahz aaoo aara aaro aava abaa abab abar abb- abba abbb abbo abbr abha abho abhr aboa abob aboh aboo abor abov abra abro abva abza ahab ahah ahar ahaz ahha ahoa ahor ahra ahrr ahva aoah aoba aora aorb arab arah arar arba arbh arh- aroa arob aroo aror aroz arr- arra arrh arro arrr arva arvo arza arzo avab avao avar avaz avor avra avro avva avvo aza- azab azar azaz azo- azoo azor azov azra azza azzo baaa baah baar baaz baba babb babo babr baha baho bahr baoh bar- bara barb barh baro barr barz bava baza bazo bbbb bhao bhar bhor bhra boab boar boaz boba bobb bobo boha boho bohr boob booh boor booz bor- bora borh boro borr borz bova bovo boza bozo brab brah brao brav braz broa brob broh broo bror broz brrr brza bzzz haab haar haba habo haha haho haor hara harh haro harr harv harz hava haza hbar hhaa hhhh hoar hoba hobo hoha hoho hoor hora horo horr hova hozo hrob hvar oara obba obbo obor obra obrh obro ohba ohho ohob ohoh ohra ooaa ooba ooha ooho oooh oooo oora orab orah orao orar orav orba orbb orbo oro- oror oroz orra orro orvr orzo ovar ovo- ovoo ovra ozar raab raaz raba rabb rabo raha rahr raob raoh rara rarb raro rarz rava raza razo razr razz rbbb rbbr rboh rhoa rhob rhoh roab roar rob- roba robb robo roha rohr roob roor rooz rora roro rova rovo roza rozz rrah rrrr rvvh rzab rzav vaar vaho vara varr vava vaza vhhh voar voho voor vor- vora voro vrav vraz vrba vvob vvvv z-ro zaar zaav zaba zabo zabr zaha zaho zahr zara zarb zaro zarr zaza zbar zhao zhar zhoa zhob zhor zoar zobo zohr zoo- zora zorb zoro zoza zozo zvab zzhz zzzz