a-a a-b a-i aaa aab aag aai aao aap aar aas aav ab- aba abb abg abi abo abp abr abs abv ag- aga agb agg agi ago agp agr ags agv ai- aia aib aig aii aio aip air ais aiv aoa aob aog aoi aoo aop aor aos aov ap- apa apb apg api apo app apr aps apv ar- ara arb arg ari aro arp arr ars arv as- asa asb asg asi aso asp asr ass asv av- ava avb avg avi avo avp avr avs b-p baa bab bag bai bao bap bar bas bav bba bbb bbg bbi bbo bbp bbr bbs bga bgb bgg bgi bgo bgp bgr bgs bgv bi- bia bib big bii bio bip bir bis biv boa bob bog boi boo bop bor bos bov bpa bpb bpg bpi bpo bpp bpr bps bpv bra brb brg bri bro brp brr brs brv bsa bsb bsg bsi bso bsp bsr bss bsv bva bvb bvg bvi bvo bvp bvr bvs bvv g-p gaa gab gag gai gao gap gar gas gav gba gbg gbi gbo gbp gbr gbs gbv gga ggb ggg ggi ggo ggp ggr ggs ggv gia gib gig gii gio gip gir gis giv goa gob gog goi goo gop gor gos gov gpa gpb gpg gpi gpo gpp gpr gps gra grb grg gri gro grp grr grs grv gsa gsb gsg gsi gso gsp gsr gss gsv gva gvb gvg gvi gvo gvp gvr gvs i-v ia- iaa iab iag iai iao iap iar ias iav iba ibb ibg ibi ibo ibp ibr ibs ibv iga igb igg igi igo igp igr igs iia iib iii iio iip iir iis io- ioa iob iog ioi ioo iop ior ios iov ipa ipb ipg ipi ipo ipp ipr ips ipv ir- ira irb irg iri iro irp irr irs irv is- isa isb isg isi iso isp isr iss isv iva ivb ivg ivi ivo ivp ivr ivs ivv o-i oaa oab oag oai oao oap oar oas oav ob- oba obb obg obi obo obp obr obs obv oga ogg ogi ogo ogp ogs oia oib oii oio oip oir ois oiv oo- ooa oob oog ooi ooo oop oor oos oov op- opa opb opg opi opo opp opr ops opv or- ora orb org ori oro orp orr ors orv os- osa osb osg osi oso osp osr oss osv ov- ova ovb ovi ovo ovp ovs ovv p-p paa pab pag pai pao pap par pas pav pba pbb pbg pbi pbo pbp pbr pbs pga pgb pgg pgi pgo pgp pgr pgs pgv pia pib pig pii pio pip pir pis piv poa pob pog poi poo pop por pos pov ppa ppb ppg ppi ppo ppp ppr pps ppv pra prb prg pri pro prp prr prs prv ps- psa psb psg psi pso psp psr pss psv pva pvb pvg pvi pvo pvp pvr pvs pvv ra- raa rab rag rai rao rap rar ras rav rba rbb rbg rbi rbo rbp rbr rbs rga rgb rgg rgi rgo rgp rgr rgs rgv ria rib rig rii rio rip rir ris riv roa rob rog roi roo rop ror ros rov rpa rpb rpg rpi rpo rpp rpr rps rpv rra rrb rrg rri rrp rrr rrs rsa rsb rsg rsi rso rsp rsr rss rsv rva rvb rvg rvi rvo rvp rvr rvs rvv saa sab sag sai sao sap sar sas sav sba sbb sbg sbi sbo sbp sbr sbs sbv sga sgb sgg sgi sgo sgp sgr sgs sgv sia sib sig sii sio sip sir sis siv soa sob sog soi soo sop sor sos sov spa spb spg spi spo spp spr sps spv sr- sra srb srg sri sro srp srr srs srv ss- ssa ssb ssg ssi sso ssp ssr sss ssv sva svb svg svi svo svp svr svs svv v-a vaa vab vag vai vao vap var vas vav vba vbg vbi vbo vbr vbs vbv vga vgg vgo vgp vgr vgs vi- via vib vig vii vio vip vir vis viv voa vob vog voi voo vop vor vos vov vpa vpb vpg vpi vpo vpp vpr vps vra vrb vrg vri vrp vrr vrs vsa vsb vsg vsi vso vsp vsr vss vsv vva vvb vvg vvi vvo vvr vvs vvv

a-ii a-iv aaaa aaab aaai aaap aaar aaas aaav aaba aabb aabi aabp aaib aaii aais aaoo aapa aapi aapo aaps aara aari aaro aarp aars aasa aasi aass aava abaa abab abag abai abap abar abas abb- abba abbb abbi abbo abbr abbs abia abib abig abir abis aboa abob aboo abor abos abov abpa abpi abpp abpr abps abra abri abro abrs abs- absa absi absp abss abva abvp ag-o agag agai agao agap agar agas agav agba agbo agga aggi agia agib agig agii agio agip agir agis agob agog agoo agos agps agra agri agro agrp agsa agsg agva aiai aias aiba aibo aiga aigo aiia aiib aiir aioi aipa aipi aips aira airi airo airp airs aisa aisb aisg aisi aiso aisr aiva aoba aopo aora aorb aors aosp aoss apai apao apap apar apas apba apbg apbr apbs apga api- apia apig apio apip apis apo- apoo apop apor apos appa appr apps apra apri apro aprs apsa apsi apso apss apsv arab arag arai arap arar aras arba arbi arbs arga argb argi argo args aria arib arig arii ario arip aris aroa arob aroi aroo aror aros arpa arpi arps arr- arra arrg arri arro arrr arrs ars- arsa arsi arso arva arvi arvo asaa asab asag asai asao asap asar asas asba asbo asgp asia asii asio asip asir asis asob asog asoi asop asor asos aspa aspi aspo aspr asps asra asrg asro asrs assa assi asso assp assr asss asva asvs avab avao avar avas avgi avgo avgp avgs avia avio avip avis aviv avor