-er a-a a-b aaa aab aae aah aak aam aan aar ab- aba abb abe abh abk abm abn abr aea aeb aee aeh aek aem aen aer aha ahb ahe ahh ahk ahm ahn ahr aka akb ake akh akk akm akn akr ama amb ame amh amk amm amn amr an- ana anb ane anh ank anm ann anr ar- ara arb are arh ark arm arn arr baa bab bae bah bak bam ban bar bba bbb bbe bbh bbk bbm bbn bbr be- bea beb bee beh bek bem ben ber bha bhb bhe bhh bhk bhm bhr bka bkb bke bkk bkm bkn bkr bma bmb bme bmh bmk bmm bmn bmr bna bnb bne bnk bnn bnr bra brb bre brh brk brm brn brr eaa eab eae eah eak eam ean ear eba ebb ebe ebh ebk ebm ebn ebr eea eeb eee eek eem een eer eha ehb ehe ehh ehm ehn ehr eka ekb eke ekh ekr em- ema emb eme emh emk emm emn emr en- ena enb ene enh enk enm enn enr era erb ere erh erk erm ern err haa hab hae hah hak ham han har hba hbb hbe hbh hbk hbm hbn hbr he- hea heb hee heh hek hem hen her hha hhb hhe hhh hhk hhm hhn hhr hka hkb hkh hkk hkm hkn hkr hma hmb hme hmh hmk hmm hmr hna hnb hne hnh hnk hnn hr- hra hrb hre hrh hrk hrm hrn hrr ka- kaa kab kae kah kak kam kan kar kba kbb kbe kbh kbk kbm kbn kbr ke- kea keb kee keh kek kem ken ker kha khe khh khk khm khn khr kkb kke kkh kkk kkm kkn kkr kma kmb kme kmh kmk kmm kn- kna kne knk knm knn knr kra krk krn krr m-r maa mab mae mah mak mam man mar mba mbb mbe mbh mbk mbm mbr mea meb mee meh mek mem men mer mha mhh mhk mhm mhn mhr mka mkb mke mkh mkk mkm mkn mkr mma mmb mme mmh mmk mmm mmn mmr mna mnb mne mnk mnm mnn mnr mra mrb mre mrh mrk mrm mrn mrr naa nab nae nah nak nam nan nar nba nbb nbe nbk nbm nbn nbr ne- nea neb nee neh nek nem nen ner nha nhb nhe nhh nhk nhm nhn nhr nka nke nkk nkm nkn nkr nma nmb nme nmh nmk nmm nmn nmr nna nnb nne nnh nnk nnm nnn nra nrb nre nrk nrm nrn nrr ra- raa rab rae rah rak ram ran rar rba rbb rbe rbh rbk rbm rbn rbr re- rea reb ree reh rek rem ren rer rh- rha rhb rhe rhh rhm rhn rhr rkb rke rkk rkm rma rmb rme rmh rmm rmn rmr rna rnb rnh rnm rnn rnr rra rrb rrh rrk rrm rrn rrr