a-a a-b a-i aaa aab aai aak aao aap aar aas aav ab- aba abb abi abk abo abp abr abs abv ai- aia aib aii aik aio aip air ais aiv aka akb aki akk ako akp akr aks akv aoa aob aoi aok aoo aop aor aos aov ap- apa apb api apk apo app apr aps apv ar- ara arb ari ark aro arp arr ars arv as- asa asb asi ask aso asp asr ass asv av- ava avb avi avk avo avp avr avs b-p baa bab bai bak bao bap bar bas bav bba bbb bbi bbk bbo bbp bbr bbs bi- bia bib bii bik bio bip bir bis biv bka bkb bkk bko bkp bkr bks bkv boa bob boi bok boo bop bor bos bov bpa bpb bpi bpo bpp bpr bps bpv bra brb bri brk bro brp brr brs brv bsa bsb bsi bsk bso bsp bsr bss bsv bva bvb bvi bvk bvo bvp bvr bvs bvv i-v ia- iaa iab iai iao iap iar ias iav iba ibb ibi ibk ibo ibp ibr ibs ibv iia iib iii iio iip iir iis ika ikb iki ikk iko ikr iks ikv io- ioa iob ioi ioo iop ior ios iov ipa ipb ipi ipo ipp ipr ips ipv ir- ira irb iri irk iro irp irr irs irv is- isa isb isi isk iso isp isr iss isv iva ivb ivi ivo ivp ivr ivs ivv ka- kaa kab kai kak kao kap kar kas kav kba kbb kbi kbk kbo kbp kbr kbs kia kib kii kik kio kip kir kis kiv kkb kki kkk kkp kkr kks kkv koa kob koi kok koo kop kor kos kpa kpi kpk kpo kpp kpr kps kpv kra kri krk kro krp krr krs krv ksa ksb ksi ksk kso ksp ksr kss ksv kva kvb kvi kvk kvo kvp kvr kvs kvv o-i oaa oab oai oak oao oap oar oas oav ob- oba obb obi obk obo obp obr obs obv oia oib oii oik oio oip oir ois oiv oka okb oki okk oko okp okr oks oo- ooa oob ooi ook ooo oop oor oos oov op- opa opb opi opk opo opp opr ops opv or- ora orb ori ork oro orp orr ors orv os- osa osb osi osk oso osp osr oss osv ov- ova ovb ovi ovo ovp ovs ovv p-p paa pab pai pak pao pap par pas pav pba pbb pbi pbk pbo pbp pbr pbs pia pib pii pik pio pip pir pis piv pka pkb pki pko pkp pkr pks poa pob poi pok poo pop por pos pov ppa ppb ppi ppk ppo ppp ppr pps ppv pra prb pri prk pro prp prr prs prv ps- psa psb psi psk pso psp psr pss psv pva pvb pvi pvk pvo pvp pvr pvs pvv ra- raa rab rai rak rao rap rar ras rav rba rbb rbi rbk rbo rbp rbr rbs ria rib rii rik rio rip rir ris riv rkb rkk rko rkp rks rkv roa rob roi rok roo rop ror ros rov rpa rpb rpi rpk rpo rpp rpr rps rpv rra rrb rri rrk rrp rrr rrs rsa rsb rsi rsk rso rsp rsr rss rsv rva rvb rvi rvo rvp rvr rvs rvv saa sab sai sak sao sap sar sas sav sba sbb sbi sbk sbo sbp sbr sbs sbv sia sib sii sik sio sip sir sis siv sk- ska skb ski skk sko skp skr sks soa sob soi sok soo sop sor sos sov spa spb spi spk spo spp spr sps spv sr- sra srb sri srk sro srp srr srs srv ss- ssa ssb ssi ssk sso ssp ssr sss ssv sva svb svi svk svo svp svr svs svv v-a vaa vab vai vak vao vap var vas vav vba vbi vbk vbo vbr vbs vbv vi- via vib vii vik vio vip vir vis viv vka vkb vkp voa vob voi vok voo vop vor vos vov vpa vpb vpi vpk vpo vpp vpr vps vra vrb vri vrk vrp vrr vrs vsa vsb vsi vsk vso vsp vsr vss vsv vva vvb vvi vvo vvr vvs vvv

a-ak a-ii a-iv a-ok aaaa aaab aaai aaap aaar aaas aaav aaba aabb aabi aabp aaib aaii aais aaka aaoo aapa aapi aapo aaps aara aari aaro aarp aars aasa aasi aass aava abaa abab abai abak abap abar abas abb- abba abbb abbi abbo abbr abbs abia abib abir abis aboa abob abok aboo abor abos abov abpa abpi abpp abpr abps abra abri abro abrs abs- absa absi absp abss abva abvp aiai aias aiba aibo aiia aiib aiir aika aiki aiko aiks aioi aipa aipi aips aira airi airo airp airs aisa aisb aisi aisk aiso aisr aiva akaa akai akao akap akar akas akia akik akio akir akis akka akki akko akok akos akpo akr- akra aksa aksi aoba aoki aokp aoks aopo aora aorb aors aosp aoss apai apak apao apap apar apas apba apbr apbs api- apia apio apip apis apo- apoo apop apor apos appa appr apps apra apri apro aprs apsa apsi apso apss apsv arab arai arak arap arar aras arba arbi arbs aria arib arii arik ario arip aris arka arki arko arks aroa arob aroi aroo aror aros arpa arpi arps arr- arra arri arrk arro arrr arrs ars- arsa arsi arsk arso arva arvi arvo asaa asab asai asak asao asap asar asas asba asbo asia asii asik asio asip asir asis aska aski asko askr asks asob asoi asok asop asor asos aspa aspi aspo aspr asps asra asro asrs assa assi assk asso assp assr asss asva asvs avab avao avar avas avia avik avio avip avis aviv avor avos avra avri avro avva avvo ba-i baaa baak baar baas baba babb babi babo babr babs baia baib baik