a-be a-ha aaaa aaab aaae aaah aaar aaav aaba aabb aabh aaea aaev aaha aara aare aava abaa abab abae abar abb- abba abbb abbe abbr abee aber abha abhr abra abva aeer aer- aera aeva ahab ahah ahar ahha ahra ahre ahrr ahva arab arae arah arar arba arbe arbh area aree areh arev arh- arr- arra arre arrh arrr arva arve avab avar avea aveh aver avra avre avva baaa baah baar baba babb babe babr baer baha bahr bar- bara barb bare barh barr bava bave bbbb bbeb beah bear beav beba bebb bebe beeb beer behr bera bere berr bhar bher bhra brab brae brah brav brea breb bree brer brev brrr eaba eabh eara earb eare earh eave ebba ebbr eber eeea eeee eera eeva ehaa ehav ehea eheh eher ehre erba erbb erbe ereb erer erev erra erre erve evae evah evar evea ever evra evre haab haar haba habe haha hara hare harh harr harv hava have hbar heah hear hebb hebe hebr heeb heer hehe hera herb here herr heve hhaa hhhh hree hvar raab raba rabb rabe raer raha rahe rahr rara rarb rare rava rave rbbb rbbr rea- reae rear reba rebb rebe reeb reev reha rehb rehe rera rere reva reve rhae rhea rheb rhee rrah rrrr rver rvvh vaar vahe vara vare varr vava vear veba veer ver- vera verb vere veve vhhh vrav vrba vrhe vver vvvv