a-a a-b a-i aaa aab aai aak aan aas aav ab- aba abb abi abk abn abs abv ai- aia aib aii aik ain ais aiv aka akb aki akk akn aks akv an- ana anb ani ank ann ans anv as- asa asb asi ask asn ass asv av- ava avb avi avk avn avs baa bab bai bak ban bas bav bba bbb bbi bbk bbn bbs bi- bia bib bii bik bin bis biv bka bkb bkk bkn bks bkv bna bnb bni bnk bnn bns bnv bsa bsb bsi bsk bsn bss bsv bva bvb bvi bvk bvn bvs bvv i-v ia- iaa iab iai ian ias iav iba ibb ibi ibk ibn ibs ibv iia iib iii iin iis ika ikb iki ikk iks ikv in- ina inb ini ink inn ins inv is- isa isb isi isk isn iss isv iva ivb ivi ivs ivv ka- kaa kab kai kak kan kas kav kba kbb kbi kbk kbn kbs kia kib kii kik kin kis kiv kkb kki kkk kkn kks kkv kn- kna kni knk knn ksa ksb ksi ksk ksn kss ksv kva kvb kvi kvk kvn kvs kvv n-i naa nab nai nak nan nas nav nba nbb nbi nbk nbn nbs nbv nia nib nii nik nin nis niv nka nki nkk nkn nks nna nnb nni nnk nnn nns nnv nsa nsb nsi nsk nsn nss nsv nva nvb nvi nvk nvn nvv saa sab sai sak san sas sav sba sbb sbi sbk sbn sbs sbv sia sib sii sik sin sis siv sk- ska skb ski skk sks sna snb sni snk snn sns snv ss- ssa ssb ssi ssk ssn sss ssv sva svb svi svk svn svs svv v-a vaa vab vai vak van vas vav vba vbi vbk vbs vbv vi- via vib vii vik vin vis viv vka vkb vn- vna vni vns vnv vsa vsb vsi vsk vsn vss vsv vva vvb vvi vvs vvv