a-a a-b aaa aab aae aah aam aas ab- aba abb abe abh abm abs aea aeb aee aeh aem aes aha ahb ahe ahh ahm ahs ama amb ame amh amm ams as- asa asb ase ash asm ass baa bab bae bah bam bas bba bbb bbe bbh bbm bbs be- bea beb bee beh bem bes bha bhb bhe bhh bhm bhs bma bmb bme bmh bmm bms bsa bsb bse bsh bsm bss eaa eab eae eah eam eas eba ebb ebe ebh ebm ebs eea eeb eee eem ees eha ehb ehe ehh ehm ehs em- ema emb eme emh emm ems es- esa esb ese esh esm ess haa hab hae hah ham has hba hbb hbe hbh hbm hbs he- hea heb hee heh hem hes hha hhb hhe hhh hhm hhs hma hmb hme hmh hmm hms hsa hsb hse hsh hsm hss maa mab mae mah mam mas mba mbb mbe mbh mbm mbs mea meb mee meh mem mes mha mhh mhm mhs mma mmb mme mmh mmm mms msa msb mse msh msm mss saa sab sae sah sam sas sba sbb sbe sbh sbm sbs se- sea seb see seh sem ses sh- sha shb she shh shm shs sma smb sme smh smm sms ss- ssa ssb sse ssh ssm sss