a-a a-b aaa aab aag aah aan aas aau ab- aba abb abg abh abn abs abu ag- aga agb agg agh agn ags agu aha ahb ahg ahh ahn ahs ahu an- ana anb ang anh ann ans anu as- asa asb asg ash asn ass asu au- aua aub aug auh aun aus b-u baa bab bag bah ban bas bau bba bbb bbg bbh bbn bbs bbu bga bgb bgg bgh bgn bgs bgu bha bhb bhg bhh bhs bhu bna bnb bng bnn bns bnu bsa bsb bsg bsh bsn bss bsu bua bub bug buh bun bus buu gaa gab gag gah gan gas gau gba gbg gbh gbn gbs gbu gga ggb ggg ggh ggn ggs ggu gha ghb ghg ghh ghn ghs gna gnb gnn gns gnu gsa gsb gsg gsn gss gsu gu- gua gub gug gun gus guu haa hab hag hah han has hau hba hbb hbg hbh hbn hbs hbu hga hgb hgg hgh hgn hgs hgu hha hhb hhg hhh hhn hhs hhu hna hnb hng hnh hnn hns hnu hsa hsb hsg hsh hsn hss hsu hua hub hug huh hun hus huu naa nab nag nah nan nas nau nba nbb nbg nbn nbs nbu nga ngb ngg ngh ngn ngs ngu nha nhb nhg nhh nhn nhs nhu nna nnb nng nnh nnn nns nnu nsa nsb nsg nsh nsn nss nsu nua nub nug nuh nun nus nuu saa sab sag sah san sas sau sba sbb sbg sbh sbn sbs sbu sga sgb sgg sgh sgn sgs sgu sh- sha shb shg shh shn shs shu sna snb sng snn sns snu ss- ssa ssb ssg ssh ssn sss ssu sua sub sug suh sun sus suu ua- uaa uab uag uah uan uas uau uba ubb ubg ubh ubn ubs ubu uga ugb ugg ugh ugn ugs ugu uha uhb uhh uhs uhu un- una unb ung unh unn uns unu usa usb usg ush usn uss usu uua uug uun uus uuu