a-a a-b a-i a-t aaa aab aai aap aar aas aat aav ab- aba abb abi abp abr abs abt abv ai- aia aib aii aip air ais ait aiv ap- apa apb api app apr aps apt apv ar- ara arb ari arp arr ars art arv as- asa asb asi asp asr ass ast asv at- ata atb ati atp atr ats att atv av- ava avb avi avp avr avs avt b-p baa bab bai bap bar bas bat bav bba bbb bbi bbp bbr bbs bbt bi- bia bib bii bip bir bis bit biv bpa bpb bpi bpp bpr bps bpt bpv bra brb bri brp brr brs brt brv bsa bsb bsi bsp bsr bss bst bsv bta btb bti btp btr bts btt btv bva bvb bvi bvp bvr bvs bvt bvv i-v ia- iaa iab iai iap iar ias iat iav iba ibb ibi ibp ibr ibs ibt ibv iia iib iii iip iir iis iit ipa ipb ipi ipp ipr ips ipt ipv ir- ira irb iri irp irr irs irt irv is- isa isb isi isp isr iss ist isv ita itb iti itp its itt itv iva ivb ivi ivp ivr ivs ivt ivv p-p paa pab pai pap par pas pat pav pba pbb pbi pbp pbr pbs pbt pia pib pii pip pir pis pit piv ppa ppb ppi ppp ppr pps ppt ppv pra prb pri prp prr prs prt prv ps- psa psb psi psp psr pss pst psv pt- pta ptb pti ptp ptr pts ptt ptv pva pvb pvi pvp pvr pvs pvt pvv ra- raa rab rai rap rar ras rat rav rba rbb rbi rbp rbr rbs rbt ria rib rii rip rir ris rit riv rpa rpb rpi rpp rpr rps rpt rpv rra rrb rri rrp rrr rrs rrt rsa rsb rsi rsp rsr rss rst rsv rta rtb rti rtp rtr rts rtt rtv rva rvb rvi rvp rvr rvs rvt rvv saa sab sai sap sar sas sat sav sba sbb sbi sbp sbr sbs sbt sbv sia sib sii sip sir sis sit siv spa spb spi spp spr sps spt spv sr- sra srb sri srp srr srs srt srv ss- ssa ssb ssi ssp ssr sss sst ssv sta stb sti stp str sts stt stv sva svb svi svp svr svs svt svv taa tab tai tap tar tas tat tav tba tbb tbi tbp tbr tbs tbt tbv tia tib tii tip tir tis tit tiv tpa tpb tpi tpp tpr tps tpt tpv tra trb tri trp trr trs trt trv tsa tsb tsi tsp tsr tss tst tsv tta ttb tti ttp ttr tts ttt ttv tva tvb tvi tvp tvr tvs tvt v-a vaa vab vai vap var vas vat vav vba vbi vbr vbs vbv vi- via vib vii vip vir vis vit viv vpa vpb vpi vpp vpr vps vpt vra vrb vri vrp vrr vrs vrt vsa vsb vsi vsp vsr vss vst vsv vta vtb vti vtr vts vtt vtv vva vvb vvi vvr vvs vvt vvv