a-a a-b a-i a-t aaa aab aai aan aao aar aas aat aav ab- aba abb abi abn abo abr abs abt abv ai- aia aib aii ain aio air ais ait aiv an- ana anb ani ann ano anr ans ant anv aoa aob aoi aon aoo aor aos aot aov ar- ara arb ari arn aro arr ars art arv as- asa asb asi asn aso asr ass ast asv at- ata atb ati atn ato atr ats att atv av- ava avb avi avn avo avr avs avt baa bab bai ban bao bar bas bat bav bba bbb bbi bbn bbo bbr bbs bbt bi- bia bib bii bin bio bir bis bit biv bna bnb bni bnn bno bnr bns bnt bnv boa bob boi bon boo bor bos bot bov bra brb bri brn bro brr brs brt brv bsa bsb bsi bsn bso bsr bss bst bsv bta btb bti btn bto btr bts btt btv bva bvb bvi bvn bvo bvr bvs bvt bvv i-v ia- iaa iab iai ian iao iar ias iat iav iba ibb ibi ibn ibo ibr ibs ibt ibv iia iib iii iin iio iir iis iit in- ina inb ini inn ino inr ins int inv io- ioa iob ioi ion ioo ior ios iot iov ir- ira irb iri irn iro irr irs irt irv is- isa isb isi isn iso isr iss ist isv ita itb iti itn ito its itt itv iva ivb ivi ivo ivr ivs ivt ivv n-i naa nab nai nan nao nar nas nat nav nba nbb nbi nbn nbo nbr nbs nbt nbv nia nib nii nin nio nir nis nit niv nna nnb nni nnn nno nns nnt nnv no- noa nob noi non noo nor nos not nov nra nrb nri nrn nro nrr nrs nrt nrv nsa nsb nsi nsn nso nsr nss nst nsv nta ntb nti ntn nto ntr nts ntt ntv nva nvb nvi nvn nvt nvv o-i oaa oab oai oan oao oar oas oat oav ob- oba obb obi obn obo obr obs obt obv oia oib oii oin oio oir ois oit oiv on- ona onb oni onn ono onr ons ont oo- ooa oob ooi oon ooo oor oos oot oov or- ora orb ori orn oro orr ors ort orv os- osa osb osi osn oso osr oss ost osv ot- ota otb oti otn oto otr ots ott otv ov- ova ovb ovi ovo ovs ovv ra- raa rab rai ran rao rar ras rat rav rba rbb rbi rbn rbo rbr rbs rbt ria rib rii rin rio rir ris rit riv rna rnb rni rnn rno rnr rns rnt rnv roa rob roi ron roo ror ros rot rov rra rrb rri rrn rrr rrs rrt rsa rsb rsi rsn rso rsr rss rst rsv rta rtb rti rtn rto rtr rts rtt rtv rva rvb rvi rvn rvo rvr rvs rvt rvv saa sab sai san sao sar sas sat sav sba sbb sbi sbn sbo sbr sbs sbt sbv sia sib sii sin sio sir sis sit siv sna snb sni snn sno snr sns snt snv soa sob soi son soo sor sos sot sov sr- sra srb sri srn sro srr srs srt srv ss- ssa ssb ssi ssn sso ssr sss sst ssv sta stb sti stn sto str sts stt stv sva svb svi svn svo svr svs svt svv taa tab tai tan tao tar tas tat tav tba tbb tbi tbn tbo tbr tbs tbt tbv tia tib tii tin tio tir tis tit tiv tna tnb tni tnn tno tnr tns tnt to- toa tob toi ton too tor tos tot tov tra trb tri trn tro trr trs trt trv tsa tsb tsi tsn tso tsr tss tst tsv tta ttb tti ttn tto ttr tts ttt ttv tva tvb tvi tvn tvo tvr tvs tvt v-a vaa vab vai van vao var vas vat vav vba vbi vbo vbr vbs vbv vi- via vib vii vin vio vir vis vit viv vn- vna vni vno vnr vns vnv voa vob voi von voo vor vos vot vov vra vrb vri vrn vrr vrs vrt vsa vsb vsi vsn vso vsr vss vst vsv vta vtb vti vto vtr vts vtt vtv vva vvb vvi vvo vvr vvs vvt vvv