-er a-a a-b aaa aab aad aae aah aaj aar ab- aba abb abd abe abh abj abr ad- ada adb add ade adh adj adr aea aeb aed aee aeh aej aer aha ahb ahd ahe ahh ahj ahr aja ajb ajd aje ajh ajj ajr ar- ara arb ard are arh arj arr baa bab bad bae bah baj bar bba bbb bbd bbe bbh bbr bda bdb bdd bde bdh bdj bdr be- bea beb bed bee beh ber bha bhb bhd bhe bhh bhj bhr bja bjd bjj bjr bra brb brd bre brh brj brr daa dab dad dae dah daj dar dba dbb dbd dbe dbh dbr dda ddb ddd dde ddh ddr de- dea deb ded dee deh dej der dh- dha dhb dhd dhe dhh dhr dj- dja djb djd dje dra drb drd dre drj drr eaa eab ead eae eah eaj ear eba ebb ebd ebe ebh ebj ebr ed- eda edb edd ede edh edj edr eea eeb eed eee eer eha ehb ehd ehe ehh ehr eja ejd era erb erd ere erh err haa hab had hae hah haj har hba hbb hbd hbe hbh hbj hbr hda hdb hdd hde hdh hdr he- hea heb hed hee heh hej her hha hhb hhd hhe hhh hhj hhr hja hjr hr- hra hrb hrd hre hrh hrj hrr j-d jaa jab jad jae jah jaj jar jba jbj jbr jda jdb jde jdh jdr jea jeb jed jee jeh jej jer jha jhd jhe jhj jhr jja jjb jjj jjr jra jrb jrr ra- raa rab rad rae rah raj rar rba rbb rbd rbe rbh rbr rda rdb rdd rde rdh rdj rdr re- rea reb red ree reh rer rh- rha rhb rhd rhe rhh rhr rja rjr rra rrb rrd rrh rrr