a-a a-b aaa aab aao aap aar aas ab- aba abb abo abp abr abs aoa aob aoo aop aor aos ap- apa apb apo app apr aps ar- ara arb aro arp arr ars as- asa asb aso asp asr ass b-p baa bab bao bap bar bas bba bbb bbo bbp bbr bbs boa bob boo bop bor bos bpa bpb bpo bpp bpr bps bra brb bro brp brr brs bsa bsb bso bsp bsr bss oaa oab oao oap oar oas ob- oba obb obo obp obr obs oo- ooa oob ooo oop oor oos op- opa opb opo opp opr ops or- ora orb oro orp orr ors os- osa osb oso osp osr oss p-p paa pab pao pap par pas pba pbb pbo pbp pbr pbs poa pob poo pop por pos ppa ppb ppo ppp ppr pps pra prb pro prp prr prs ps- psa psb pso psp psr pss ra- raa rab rao rap rar ras rba rbb rbo rbp rbr rbs roa rob roo rop ror ros rpa rpb rpo rpp rpr rps rra rrb rrp rrr rrs rsa rsb rso rsp rsr rss saa sab sao sap sar sas sba sbb sbo sbp sbr sbs soa sob soo sop sor sos spa spb spo spp spr sps sr- sra srb sro srp srr srs ss- ssa ssb sso ssp ssr sss

aaaa aaab aaap aaar aaas aaba aabb aabp aaoo aapa aapo aaps aara aaro aarp aars aasa aass abaa abab abap abar abas abb- abba abbb abbo abbr abbs aboa abob aboo abor abos abpa abpp abpr abps abra abro abrs abs- absa absp abss aoba aopo aora aorb aors aosp aoss apao apap apar apas apba apbr apbs apo- apoo apop apor apos appa appr apps apra apro aprs apsa apso apss arab arap arar aras arba arbs aroa arob aroo aror aros arpa arps arr- arra arro arrr arrs ars- arsa arso asaa asab asao asap asar asas asba asbo asob asop asor asos aspa aspo aspr asps asra asro asrs assa asso assp assr asss baaa baar baas baba babb babo babr babs baos bapa bapp baps bar- bara barb baro barr bars basa baso bass bbas bbbb bbbs bbpr boab boar boas boba bobb bobo bobs boob boop boor boos bopa bopp bops bor- bora boro borr bors bosa boso boss bpsa brab brao bras broa brob broo bror bros brrr brrs brsb brsr bsaa bsap bsas bsos bspp bspr bsra oaps oara oars oass obas obba obbo obor obos obra obro obsr obss ooaa ooba oooo ooos oops oora oosa opap opar opo- opor opos oppa oppo opps opra opsa orab orao orar oras orba orbb orbo orbs oro- oror oros orps orra orro orrs orsa orso osap osar osas osba osbp osoo osor osos osro ossa ossb osso paap paar paas paba paos papa papb papp papr paps par- para paro parp parr pars pasa paso pasp pass pbar pbpa pbrs pbsa pbsp poar poas poba pobo pobs poop poor poos pop- popa popo popp pops pora porb poro porr pors posa posb poso poss ppap ppar ppoa ppos pppa pppo pppp ppps ppss prao prar pras prbs pro- proa prob proo prop pros prps prrs prsa prso prss psap psas psbr psoa psos pspp pspr psps psrp pssa psso raab raas raba rabb rabo rabs raob raop raos rapa rapp raps rara rarb raro rars rasa raso rasp rass rbbb rbbr rbbs rbsp rbss roab roap roar roas rob- roba robb robo robs roob roop roor roos ropa ropo rops rora roro rosa roso rosp ross rpob rpos rpps rras rrrr rrsp rsaa rsos rspb rspo rsps rssa s-os saab saap saar saas saba sabb sabo sabr sabs saor saos sapa sapo sapp saps sara saro sarp sarr sars sasa saso sass sbaa sbar sbas sbbs sbor sbsa sbsp soap soar soas soba sobo sobp sobr sobs soop soor soos sopa sopo sopp sops sora sorb soro sorr sors sosa soso soss sp-a spap spar spas spoo spop spor spos spps spro sprs spsa spso spsp spss sras sros srps srsp ssaa ssab ssao ssap ssas ssbr ssop sspa sspo ssps ssra ssrs sssa sssb ssss

-aaa- a-a-p aaaas aaasa aaass aabaa aabba aabps aabra aarop aasra abaab ababa ababs abapo abara abasa abass abbar abbas abbos abbrs aboab abobo abora aboso abrar abras absar aoos apapa apar- apara apars apasa apass apoop apoor apopa apopo aporo appar appos appro apros apsar apsos ar-ab arab- araba arabo arabs arara arars arass arbab arbar arbas arbor arbos aroab aroar aroba aroor aroos aropa arora arosa arpar arpas arras arros arsos asaba asara asaro asarp asasa asbos asbro asoar asors asosa aspar aspas aspos aspra aspro asrar asror assab assas assoa assos baaop baars babar babas babbs baboo babos babra baoro baraa barab barao barar baras barba barbs baro- baroa baroo baror baros barra barro barrs barsa barss basab basar baso- basor baspa basra bassa basso bo-bo boaro boars bobar bobos bobr booba boobs boops boora boors boosa boras borba borbo boro- boroa boroo boros borra borro borsa bosas bosor bosra bossa bosso braas brasa brass brobo brobs broos brora bross brrar brrrr bsaba bssap o-r-b oaror obaba obara obora oboro obrab obras ooooo oopsa opara opobo oppas oppos oraas oraba orapa orara orobo oropa oroso osars ososo ossos paara paarp paars pabas pabbo pabra paoro papa- papar papas papop papos pappa pappo papps para- parao paras paroa paroo paros parps parr- parra parro parrs parsa pasab pasar pasos pass- passa passo po-po pobra poopo poops poora poors popop popos poppa poppo porab porba poro- poros porra porro porsa pppoa praps prasa praso proap proas proba probo probs proor prop- propp propr props prora pros- prosa proso pross prssa psapp psara psbaa psoas psor- psora ra-ra raaba raaor raasa raaso rabab rabap rabas rabba rabor rabos rapar rapor rappa rapso rasar rasas rasor rasos raspa rasps rasra rassa rasso ro-ro roars robab robar