a-a a-b a-i aaa aab aad aai aak aao aap aar aas ab- aba abb abd abi abk abo abp abr abs ad- ada adb add adi adk ado adp adr ads ai- aia aib aid aii aik aio aip air ais aka akb akd aki akk ako akp akr aks aoa aob aod aoi aok aoo aop aor aos ap- apa apb apd api apk apo app apr aps ar- ara arb ard ari ark aro arp arr ars as- asa asb asd asi ask aso asp asr ass b-p baa bab bad bai bak bao bap bar bas bba bbb bbd bbi bbk bbo bbp bbr bbs bda bdb bdd bdi bdk bdo bdp bdr bds bi- bia bib bid bii bik bio bip bir bis bka bkb bkk bko bkp bkr bks boa bob bod boi bok boo bop bor bos bpa bpb bpd bpi bpo bpp bpr bps bra brb brd bri brk bro brp brr brs bsa bsb bsd bsi bsk bso bsp bsr bss daa dab dad dai dak dao dap dar das dba dbb dbd dbi dbk dbo dbp dbr dbs dda ddb ddd ddi ddk ddo ddp ddr dds di- dia dib did dii dik dio dip dir dis dka dkb dki dkk dko dkp dkr dks doa dob dod doi dok doo dop dor dos dpa dpb dpd dpi dpk dpo dpp dpr dps dra drb drd dri drk dro drp drr drs dsa dsb dsd dsi dsk dso dsp dsr dss i-d ia- iaa iab iad iai iao iap iar ias iba ibb ibd ibi ibk ibo ibp ibr ibs ida idb idd idi idk ido idp idr ids iia iib iid iii iio iip iir iis ika ikb iki ikk iko ikr iks io- ioa iob iod ioi ioo iop ior ios ipa ipb ipd ipi ipo ipp ipr ips ir- ira irb ird iri irk iro irp irr irs is- isa isb isd isi isk iso isp isr iss ka- kaa kab kad kai kak kao kap kar kas kba kbb kbd kbi kbk kbo kbp kbr kbs kda kdb kdk kdo kdp kdr kds kia kib kid kii kik kio kip kir kis kkb kki kkk kkp kkr kks koa kob kod koi kok koo kop kor kos kpa kpd kpi kpk kpo kpp kpr kps kra krd kri krk kro krp krr krs ksa ksb ksd ksi ksk kso ksp ksr kss o-i oaa oab oad oai oak oao oap oar oas ob- oba obb obd obi obk obo obp obr obs oda odb odd odi odo odp odr ods oia oib oid oii oik oio oip oir ois oka okb okd oki okk oko okp okr oks oo- ooa oob ood ooi ook ooo oop oor oos op- opa opb opd opi opk opo opp opr ops or- ora orb ord ori ork oro orp orr ors os- osa osb osd osi osk oso osp osr oss p-p paa pab pad pai pak pao pap par pas pba pbb pbd pbi pbk pbo pbp pbr pbs pda pdb pdd pdi pdk pdo pdp pdr pds pia pib pid pii pik pio pip pir pis pka pkb pkd pki pko pkp pkr pks poa pob pod poi pok poo pop por pos ppa ppb ppd ppi ppk ppo ppp ppr pps pra prb prd pri prk pro prp prr prs ps- psa psb psd psi psk pso psp psr pss ra- raa rab rad rai rak rao rap rar ras rba rbb rbd rbi rbk rbo rbp rbr rbs rda rdb rdd rdi rdo rdp rdr rds ria rib rid rii rik rio rip rir ris rkb rkk rko rkp rks roa rob rod roi rok roo rop ror ros rpa rpb rpd rpi rpk rpo rpp rpr rps rra rrb rrd rri rrk rrp rrr rrs rsa rsb rsd rsi rsk rso rsp rsr rss saa sab sad sai sak sao sap sar sas sba sbb sbd sbi sbk sbo sbp sbr sbs sda sdb sdd sdi sdk sdo sdp sdr sds sia sib sid sii sik sio sip sir sis sk- ska skb skd ski skk sko skp skr sks soa sob sod soi sok soo sop sor sos spa spb spd spi spk spo spp spr sps sr- sra srb srd sri srk sro srp srr srs ss- ssa ssb ssd ssi ssk sso ssp ssr sss

a-ak a-do a-ii a-ok aaaa aaab aaad aaai aaap aaar aaas aaba aabb aabd aabi aabp aada aadi aads aaib aaii aais aaka aaoo aapa aapi aapo aaps aara aard aari aaro aarp aars aasa aasd aasi aass abaa abab abad abai abak abap abar abas abb- abba abbb abbi abbo abbr abbs abda abdi abdo abia abib abid abir abis aboa abob abod abok aboo abor abos abpa abpd abpi abpp abpr abps abra abri abro abrs abs- absa absd absi absp abss adaa adab adad adai adak adao adap adar adas adba adbi adda addd addi addo addr adds adia adib adik adio adip adir adis adki adob adod adok adoo ador ados adp- adps adra adro adrs adsa adsi adso adsr adss aiai aias aiba aibo aida aidb aidi aidr aids aiia aiib aiid aiir aika aiki aiko aiks aioi aipa aipi aips aira aird airi airo airp airs aisa aisb aisd aisi aisk aiso aisr akaa akai akao akap akar akas akia akid akik akio akir akis akka akki akko akok akos akpo akr- akra aksa aksi aoba aoki aokp aoks aopo aora aorb aors aosd aosp aoss apai apak apao apap apar apas apba apbr apbs apda apdd apds api- apia apid apio apip apis apo- apod apoo apop apor apos appa appd appr apps apra apri apro aprs apsa apsi apso apss arab arad arai arak arap arar aras arba arbi arbs arda ardi ardo ards aria arib arid arii arik ario arip aris arka arki arko arks aroa arob arod aroi aroo aror aros arpa arpi arps arr- arra