a-a a-b aaa aab aad aah aan aas aau ab- aba abb abd abh abn abs abu ad- ada adb add adh adn ads adu aha ahb ahd ahh ahn ahs ahu an- ana anb and anh ann ans anu as- asa asb asd ash asn ass asu au- aua aub aud auh aun aus b-u baa bab bad bah ban bas bau bba bbb bbd bbh bbn bbs bbu bda bdb bdd bdh bds bdu bha bhb bhd bhh bhs bhu bna bnb bnd bnn bns bnu bsa bsb bsd bsh bsn bss bsu bua bub bud buh bun bus buu daa dab dad dah dan das dau dba dbb dbd dbh dbn dbs dbu dda ddb ddd ddh ddn dds ddu dh- dha dhb dhd dhh dhs dhu dna dnb dnd dnh dnn dns dsa dsb dsd dsh dsn dss dsu dua dub dud duh dun dus haa hab had hah han has hau hba hbb hbd hbh hbn hbs hbu hda hdb hdd hdh hdn hds hdu hha hhb hhd hhh hhn hhs hhu hna hnb hnd hnh hnn hns hnu hsa hsb hsd hsh hsn hss hsu hua hub hud huh hun hus huu naa nab nad nah nan nas nau nba nbb nbd nbn nbs nbu nda ndb ndd ndh ndn nds ndu nha nhb nhd nhh nhn nhs nhu nna nnb nnh nnn nns nnu nsa nsb nsd nsh nsn nss nsu nua nub nud nuh nun nus nuu saa sab sad sah san sas sau sba sbb sbd sbh sbn sbs sbu sda sdb sdd sdh sdn sds sdu sh- sha shb shd shh shn shs shu sna snb snd snn sns snu ss- ssa ssb ssd ssh ssn sss ssu sua sub sud suh sun sus suu ua- uaa uab uad uah uan uas uau uba ubb ubh ubn ubs ubu uda udb udd udn uds udu uha uhb uhd uhh uhs uhu un- una unb und unh unn uns unu usa usb usd ush usn uss usu uua uun uus uuu