a-a a-b a-i aaa aab aag aah aai aas ab- aba abb abg abh abi abs ag- aga agb agg agh agi ags aha ahb ahg ahh ahi ahs ai- aia aib aig aih aii ais as- asa asb asg ash asi ass baa bab bag bah bai bas bba bbb bbg bbh bbi bbs bga bgb bgg bgh bgi bgs bha bhb bhg bhh bhi bhs bi- bia bib big bih bii bis bsa bsb bsg bsh bsi bss gaa gab gag gah gai gas gba gbg gbh gbi gbs gga ggb ggg ggh ggi ggs gha ghb ghg ghh ghi ghs gia gib gig gih gii gis gsa gsb gsg gsi gss h-i haa hab hag hah hai has hba hbb hbg hbh hbi hbs hga hgb hgg hgh hgi hgs hha hhb hhg hhh hhi hhs hia hib hig hih hii his hsa hsb hsg hsh hsi hss ia- iaa iab iag iah iai ias iba ibb ibg ibh ibi ibs iga igb igg igh igi igs iha ihb ihg ihh ihi ihs iia iib iih iii iis is- isa isb isg ish isi iss saa sab sag sah sai sas sba sbb sbg sbh sbi sbs sga sgb sgg sgh sgi sgs sh- sha shb shg shh shi shs sia sib sig sih sii sis ss- ssa ssb ssg ssh ssi sss