a-a a-b a-i a-t aaa aab aai aan aao aas aat aav ab- aba abb abi abn abo abs abt abv ai- aia aib aii ain aio ais ait aiv an- ana anb ani ann ano ans ant anv aoa aob aoi aon aoo aos aot aov as- asa asb asi asn aso ass ast asv at- ata atb ati atn ato ats att atv av- ava avb avi avn avo avs avt baa bab bai ban bao bas bat bav bba bbb bbi bbn bbo bbs bbt bi- bia bib bii bin bio bis bit biv bna bnb bni bnn bno bns bnt bnv boa bob boi bon boo bos bot bov bsa bsb bsi bsn bso bss bst bsv bta btb bti btn bto bts btt btv bva bvb bvi bvn bvo bvs bvt bvv i-v ia- iaa iab iai ian iao ias iat iav iba ibb ibi ibn ibo ibs ibt ibv iia iib iii iin iio iis iit in- ina inb ini inn ino ins int inv io- ioa iob ioi ion ioo ios iot iov is- isa isb isi isn iso iss ist isv ita itb iti itn ito its itt itv iva ivb ivi ivo ivs ivt ivv n-i naa nab nai nan nao nas nat nav nba nbb nbi nbn nbo nbs nbt nbv nia nib nii nin nio nis nit niv nna nnb nni nnn nno nns nnt nnv no- noa nob noi non noo nos not nov nsa nsb nsi nsn nso nss nst nsv nta ntb nti ntn nto nts ntt ntv nva nvb nvi nvn nvt nvv o-i oaa oab oai oan oao oas oat oav ob- oba obb obi obn obo obs obt obv oia oib oii oin oio ois oit oiv on- ona onb oni onn ono ons ont oo- ooa oob ooi oon ooo oos oot oov os- osa osb osi osn oso oss ost osv ot- ota otb oti otn oto ots ott otv ov- ova ovb ovi ovo ovs ovv saa sab sai san sao sas sat sav sba sbb sbi sbn sbo sbs sbt sbv sia sib sii sin sio sis sit siv sna snb sni snn sno sns snt snv soa sob soi son soo sos sot sov ss- ssa ssb ssi ssn sso sss sst ssv sta stb sti stn sto sts stt stv sva svb svi svn svo svs svt svv taa tab tai tan tao tas tat tav tba tbb tbi tbn tbo tbs tbt tbv tia tib tii tin tio tis tit tiv tna tnb tni tnn tno tns tnt to- toa tob toi ton too tos tot tov tsa tsb tsi tsn tso tss tst tsv tta ttb tti ttn tto tts ttt ttv tva tvb tvi tvn tvo tvs tvt v-a vaa vab vai van vao vas vat vav vba vbi vbo vbs vbv vi- via vib vii vin vio vis vit viv vn- vna vni vno vns vnv voa vob voi von voo vos vot vov vsa vsb vsi vsn vso vss vst vsv vta vtb vti vto vts vtt vtv vva vvb vvi vvo vvs vvt vvv