a-a a-b aaa aab aad aan aao aap aar aas ab- aba abb abd abn abo abp abr abs ad- ada adb add adn ado adp adr ads an- ana anb and ann ano anp anr ans aoa aob aod aon aoo aop aor aos ap- apa apb apd apn apo app apr aps ar- ara arb ard arn aro arp arr ars as- asa asb asd asn aso asp asr ass b-p baa bab bad ban bao bap bar bas bba bbb bbd bbn bbo bbp bbr bbs bda bdb bdd bdo bdp bdr bds bna bnb bnd bnn bno bnp bnr bns boa bob bod bon boo bop bor bos bpa bpb bpd bpn bpo bpp bpr bps bra brb brd brn bro brp brr brs bsa bsb bsd bsn bso bsp bsr bss daa dab dad dan dao dap dar das dba dbb dbd dbn dbo dbp dbr dbs dda ddb ddd ddn ddo ddp ddr dds dna dnb dnd dnn dno dnp dnr dns doa dob dod don doo dop dor dos dpa dpb dpd dpn dpo dpp dpr dps dra drb drd drn dro drp drr drs dsa dsb dsd dsn dso dsp dsr dss naa nab nad nan nao nap nar nas nba nbb nbd nbn nbo nbp nbr nbs nda ndb ndd ndn ndo ndp ndr nds nna nnb nnn nno nnp nns no- noa nob nod non noo nop nor nos npa npb npd npn npo npp npr nps nra nrb nrd nrn nro nrp nrr nrs nsa nsb nsd nsn nso nsp nsr nss oaa oab oad oan oao oap oar oas ob- oba obb obd obn obo obp obr obs oda odb odd odn odo odp odr ods on- ona onb ond onn ono onp onr ons oo- ooa oob ood oon ooo oop oor oos op- opa opb opd opn opo opp opr ops or- ora orb ord orn oro orp orr ors os- osa osb osd osn oso osp osr oss p-p paa pab pad pan pao pap par pas pba pbb pbd pbn pbo pbp pbr pbs pda pdb pdd pdn pdo pdp pdr pds pn- pna pnb pnd pnn pno pnp pnr pns poa pob pod pon poo pop por pos ppa ppb ppd ppn ppo ppp ppr pps pra prb prd prn pro prp prr prs ps- psa psb psd psn pso psp psr pss ra- raa rab rad ran rao rap rar ras rba rbb rbd rbn rbo rbp rbr rbs rda rdb rdd rdn rdo rdp rdr rds rna rnb rnd rnn rno rnp rnr rns roa rob rod ron roo rop ror ros rpa rpb rpd rpn rpo rpp rpr rps rra rrb rrd rrn rrp rrr rrs rsa rsb rsd rsn rso rsp rsr rss saa sab sad san sao sap sar sas sba sbb sbd sbn sbo sbp sbr sbs sda sdb sdd sdn sdo sdp sdr sds sna snb snd snn sno snp snr sns soa sob sod son soo sop sor sos spa spb spd spn spo spp spr sps sr- sra srb srd srn sro srp srr srs ss- ssa ssb ssd ssn sso ssp ssr sss

-ana a-do aaaa aaab aaad aaan aaap aaar aaas aaba aabb aabd aabp aada aads aana aand aanp aaon aaoo aapa aapo aaps aara aard aaro aarp aars aasa aasd aass abaa abab abad aban abap abar abas abb- abba abbb abbo abbr abbs abda abdo aboa abob abod abon aboo abor abos abpa abpd abpn abpp abpr abps abra abro abrs abs- absa absd absp abss adaa adab adad adan adao adap adar adas adba adda addd addn addo addr adds adna adnp adns adob adod adon adoo ador ados adp- adps adra adro adrs adsa adso adsr adss ana- anaa anab anad anan anao anap anar anas anba anbb anbo and- anda ando andr ands anna annb anno anns ano- anoa anod anon anor anos anp- anpa anpp anpr ansa ansd anso ansp aoba aonb aono aopo aora aorb aorn aors aosd aosp aoss apan apao apap apar apas apba apbr apbs apda apdd apds apna apno apo- apod apon apoo apop apor apos appa appd appr apps apra aprn apro aprs apsa apso apss arab arad aran arap arar aras arba arbs arda ardo ards arna arnd arno arns aroa arob arod aron aroo aror aros arpa arps arr- arra arro arrr arrs ars- arsa arsd arso asaa asab asad asan asao asap asar asas asba asbo asda asdo asds asno asob asod ason asop asor asos aspa aspd aspo aspr asps asra asro asrs assa assd assn asso assp assr asss baaa baad baan baar baas baba babb babo babr babs bada badb badd bado badr bads bana band bann bano banp banr bans baon baos bapa bapp baps bar- bara barb bard barn baro barr bars basa baso bass bbad bbas bbbb bbbs bbdd bbdo bbpr bd-r bdna bdos bdsd bnas bnor bnpp bnrr bnss boab boad boan boar boas boba bobb bobo bobs boda bodb bodo bods bona bond bonn bono bons boob bood boon boop boor boos bopa bopp bops bor- bora bord born boro borr bors bosa bosn boso boss bpda bprd bpsa brab brad bran brao bras brda brdo brds brna brno brns broa brob brod bron broo bror bros brrr brrs brsb brsr bsaa bsap bsas bsbd bsnd bsns bsod bson bsos bspp bspr bsra bsrd bssd d-bo d-na daab daad daan daap daar daas daba dabb dabo dabp dabs dada dado dads dana dand dann dano danr dans daon daos dapa dapp daps dara darb dard darn daro darp darr dars dasa dasb dasd dass dbar dbas dbos dbpd dbrn dbrs dbsa dbss dddd ddpo ddps ddss dnaa dnab dnad dnan dnap dnas dnpo dnsa doab doan doap doar doas doba dobb dobs dod- doda dodd dodo dods dona dond donn dono donp donr dons doob dood doon doop door doos dopa dopo dopp dopr dops dora dord dorn