-er a-a a-b a-z aaa aab aad aae aah aar aaz ab- aba abb abd abe abh abr abz ad- ada adb add ade adh adr adz aea aeb aed aee aeh aer aez aha ahb ahd ahe ahh ahr ahz ar- ara arb ard are arh arr arz az- aza azb azd aze azz baa bab bad bae bah bar baz bba bbb bbd bbe bbh bbr bda bdb bdd bde bdh bdr bdz be- bea beb bed bee beh ber bez bha bhb bhd bhe bhh bhr bra brb brd bre brh brr brz bza bzd bze bzh bzr bzz daa dab dad dae dah dar daz dba dbb dbd dbe dbh dbr dbz dda ddb ddd dde ddh ddr ddz de- dea deb ded dee deh der dez dh- dha dhb dhd dhe dhh dhr dra drb drd dre drr drz dza dzb dzd dze dzr eaa eab ead eae eah ear eaz eba ebb ebd ebe ebh ebr ed- eda edb edd ede edh edr eea eeb eed eee eer eha ehb ehd ehe ehh ehr era erb erd ere erh err erz eze ezh ezr ezz haa hab had hae hah har haz hba hbb hbd hbe hbh hbr hbz hda hdb hdd hde hdh hdr hdz he- hea heb hed hee heh her hez hha hhb hhd hhe hhh hhr hhz hr- hra hrb hrd hre hrh hrr hrz hzd hze ra- raa rab rad rae rah rar raz rba rbb rbd rbe rbh rbr rda rdb rdd rde rdh rdr re- rea reb red ree reh rer rez rh- rha rhb rhd rhe rhh rhr rra rrb rrd rrh rrr rza rzb rze zaa zab zad zah zar zaz zbb zbr zea zeb zed zee zeh zer zez zha zhe zhr zrh zzr zzz