a-a a-b a-i aaa aab aai aan aas aau ab- aba abb abi abn abs abu ai- aia aib aii ain ais aiu an- ana anb ani ann ans anu as- asa asb asi asn ass asu au- aua aub aui aun aus b-u baa bab bai ban bas bau bba bbb bbi bbn bbs bbu bi- bia bib bii bin bis biu bna bnb bni bnn bns bnu bsa bsb bsi bsn bss bsu bua bub bui bun bus buu ia- iaa iab iai ian ias iau iba ibb ibi ibn ibs ibu iia iib iii iin iis iiu in- ina inb ini inn ins inu is- isa isb isi isn iss isu iu- iua iub iui ius n-i naa nab nai nan nas nau nba nbb nbi nbn nbs nbu nia nib nii nin nis niu nna nnb nni nnn nns nnu nsa nsb nsi nsn nss nsu nua nub nui nun nus nuu saa sab sai san sas sau sba sbb sbi sbn sbs sbu sia sib sii sin sis siu sna snb sni snn sns snu ss- ssa ssb ssi ssn sss ssu sua sub sui sun sus suu ua- uaa uab uai uan uas uau uba ubb ubi ubn ubs ubu uia uib uii uin uis uiu un- una unb uni unn uns unu usa usb usi usn uss usu uua uun uus uuu