a-a a-b a-i a-t aaa aab aai aam aao aar aas aat aav ab- aba abb abi abm abo abr abs abt abv ai- aia aib aii aim aio air ais ait aiv ama amb ami amm amo amr ams amt amv aoa aob aoi aom aoo aor aos aot aov ar- ara arb ari arm aro arr ars art arv as- asa asb asi asm aso asr ass ast asv at- ata atb ati atm ato atr ats att atv av- ava avb avi avm avo avr avs avt baa bab bai bam bao bar bas bat bav bba bbb bbi bbm bbo bbr bbs bbt bi- bia bib bii bim bio bir bis bit biv bma bmb bmi bmm bmo bmr bms bmt bmv boa bob boi bom boo bor bos bot bov bra brb bri brm bro brr brs brt brv bsa bsb bsi bsm bso bsr bss bst bsv bta btb bti btm bto btr bts btt btv bva bvb bvi bvm bvo bvr bvs bvt bvv i-v ia- iaa iab iai iam iao iar ias iat iav iba ibb ibi ibm ibo ibr ibs ibt ibv iia iib iii iim iio iir iis iit im- ima imb imi imm imo ims imt imv io- ioa iob ioi iom ioo ior ios iot iov ir- ira irb iri irm iro irr irs irt irv is- isa isb isi ism iso isr iss ist isv ita itb iti itm ito its itt itv iva ivb ivi ivo ivr ivs ivt ivv m-o m-r m-v maa mab mai mam mao mar mas mat mav mba mbb mbi mbm mbo mbr mbs mbt mbv mi- mia mib mii mim mio mir mis mit miv mma mmb mmi mmm mmo mmr mms mmt mmv moa mob moi mom moo mor mos mot mov mra mrb mri mrm mro mrr mrs mrt mrv msa msb msi msm mso msr mss mst msv mta mtb mti mtm mto mtr mts mtt mtv mva mvb mvi mvm mvo mvr mvs mvt mvv o-i oaa oab oai oam oao oar oas oat oav ob- oba obb obi obm obo obr obs obt obv oia oib oii oim oio oir ois oit oiv om- oma omb omi omm omo omr oms omt omv oo- ooa oob ooi oom ooo oor oos oot oov or- ora orb ori orm oro orr ors ort orv os- osa osb osi osm oso osr oss ost osv ot- ota otb oti otm oto otr ots ott otv ov- ova ovb ovi ovo ovs ovv ra- raa rab rai ram rao rar ras rat rav rba rbb rbi rbm rbo rbr rbs rbt ria rib rii rim rio rir ris rit riv rma rmb rmi rmm rmo rmr rms rmt rmv roa rob roi rom roo ror ros rot rov rra rrb rri rrm rrr rrs rrt rsa rsb rsi rsm rso rsr rss rst rsv rta rtb rti rtm rto rtr rts rtt rtv rva rvb rvi rvm rvo rvr rvs rvt rvv saa sab sai sam sao sar sas sat sav sba sbb sbi sbm sbo sbr sbs sbt sbv sia sib sii sim sio sir sis sit siv sma smb smi smm smo smr sms smt smv soa sob soi som soo sor sos sot sov sr- sra srb sri srm sro srr srs srt srv ss- ssa ssb ssi ssm sso ssr sss sst ssv sta stb sti stm sto str sts stt stv sva svb svi svm svo svr svs svt svv taa tab tai tam tao tar tas tat tav tba tbb tbi tbm tbo tbr tbs tbt tbv tia tib tii tim tio tir tis tit tiv tma tmb tmi tmm tmo tmr tms tmt tmv to- toa tob toi tom too tor tos tot tov tra trb tri trm tro trr trs trt trv tsa tsb tsi tsm tso tsr tss tst tsv tta ttb tti ttm tto ttr tts ttt ttv tva tvb tvi tvm tvo tvr tvs tvt v-a vaa vab vai vam vao var vas vat vav vba vbi vbm vbo vbr vbs vbv vi- via vib vii vim vio vir vis vit viv vm- vma vmi vmm vmo vmr vmt voa vob voi vom voo vor vos vot vov vra vrb vri vrm vrr vrs vrt vsa vsb vsi vsm vso vsr vss vst vsv vta vtb vti vtm vto vtr vts vtt vtv vva vvb vvi vvm vvo vvr vvs vvt vvv