a-be aaaa aaab aaae aaar aaba aabb aaea aara aare abaa abab abae abaj abar abb- abba abbb abbe abbr abee aber abra aeer aer- aera ajab ajar ajba ajee arab arae arar arba arbe area aree arja arje arr- arra arre arrr baaa baar baba babb babe babr baer baja bar- bara barb bare barr bbbb bbeb bear beba bebb bebe beeb beej beer beja bera bere berr brab brae braj brea breb bree brer brje brrr eaba eara earb eare ebba ebbr eber eeea eeee eera ejer erba erbb erbe ereb erer erja erra erre jaar jaba jabr jaer jaja jara jare jarr jbaa jbar jear jebb jebe jeer jera jere jjar jrbr raab raaj raba rabb rabe raer raja raje rara rarb rare rbbb rbbr rea- reae rear reba rebb rebe reeb reja rera rere rrrr