a-a a-b a-i aaa aab aai aam aao aap aar ab- aba abb abi abm abo abp abr ai- aia aib aii aim aio aip air ama amb ami amm amo amp amr aoa aob aoi aom aoo aop aor ap- apa apb api apm apo app apr ar- ara arb ari arm aro arp arr b-p baa bab bai bam bao bap bar bba bbb bbi bbm bbo bbp bbr bi- bia bib bii bim bio bip bir bma bmb bmi bmm bmo bmp bmr boa bob boi bom boo bop bor bpa bpb bpi bpm bpo bpp bpr bra brb bri brm bro brp brr ia- iaa iab iai iam iao iap iar iba ibb ibi ibm ibo ibp ibr iia iib iii iim iio iip iir im- ima imb imi imm imo imp io- ioa iob ioi iom ioo iop ior ipa ipb ipi ipm ipo ipp ipr ir- ira irb iri irm iro irp irr m-o m-r maa mab mai mam mao map mar mba mbb mbi mbm mbo mbp mbr mi- mia mib mii mim mio mip mir mma mmb mmi mmm mmo mmp mmr moa mob moi mom moo mop mor mpa mpb mpi mpm mpo mpp mpr mra mrb mri mrm mro mrp mrr o-i oaa oab oai oam oao oap oar ob- oba obb obi obm obo obp obr oia oib oii oim oio oip oir om- oma omb omi omm omo omp omr oo- ooa oob ooi oom ooo oop oor op- opa opb opi opm opo opp opr or- ora orb ori orm oro orp orr p-p paa pab pai pam pao pap par pba pbb pbi pbm pbo pbp pbr pia pib pii pim pio pip pir pma pmb pmi pmm pmo pmp pmr poa pob poi pom poo pop por ppa ppb ppi ppm ppo ppp ppr pra prb pri prm pro prp prr ra- raa rab rai ram rao rap rar rba rbb rbi rbm rbo rbp rbr ria rib rii rim rio rip rir rma rmb rmi rmm rmo rmp rmr roa rob roi rom roo rop ror rpa rpb rpi rpm rpo rpp rpr rra rrb rri rrm rrp rrr

a-ii aaaa aaab aaai aaam aaap aaar aaba aabb aabi aabm aabp aaib aaii aama aamb aami aamo aamp aamr aaoo aapa aapi aapm aapo aara aari aarm aaro aarp abaa abab abai abam abap abar abb- abba abbb abbi abbo abbr abia abib abim abir abma abmb aboa abob aboo abor abpa abpi abpm abpp abpr abra abri abro aiai aiba aibo aiia aiib aiir aimi aimm aimo aimp aioi aipa aipi aira airi airo airp amaa amai amam amap amar amb- amba ambi ambo ambr amia amib amii amip amir amm- amma ammi ammo amob amoi amoo amor ampa ampm ampo amra amri amro aoba aoma aopo aora aorb apai apam apao apap apar apba apbr api- apia apim apio apip apma apo- apom apoo apop apor appa appr apra apri apro arab arai aram arap arar arba arbi aria arib arii arim ario arip arma armi armm armo aroa arob aroi arom aroo aror arpa arpi arr- arra arri arro arrr ba-i baaa baam baar baba babb babi babm babo babr baia baib baio bair bama bamb bami bamm bamp bapa bapi bapp bar- bara barb bari barm baro barr bbbb bbpr biao biap biar biba bibb bibi bibo bima bimo bio- bioi bipa bipm bipp bira birb biri biro birr bmaa bmir bmmi bmop boab boai boar boba bobb bobi bobo boi- boii boim boma bomb bomi bomp boob boom boop boor bopa bopp bor- bora bori borm boro borr bpai brab brai bram brao bria brim brio broa brob brom broo bror brrm brrr iaaa iaai iaap iaba iabm iaia iaim iama iamb iami iamp iapa iapm iapp iara ibar ibbm ibia ibim ibma ibmp ibra ibri ibro iiii iiio iioi iioo iiop iipa iipm iira imai imam imao imar imba imbi imir imma immi immo impa impi impr imra imri imro imrr ioba iobi ioii ioio ioma iomo iooi iooo iora iori ipam ipba ipmi ipmp ipop ippa ippo ippr ipri irai iram irao irap irar irbm irbp iri- iria irio irip irma irmo irob irop irpa irra irri ma-i maaa maai maam maap maar maba mabi mabo maia maib maii maim maio mair mama mami mamo mamp maoi maor mapa mapi mapo mapp mapr mar- mara mari marm maro marr mbam mbba mbia mbim mbio miaa miab miai miam miao miii miio mim- mima mimi mimo mimp mio- mipi mipr mira miri miro mirr mmaa mmab mmai mmap mmar mmii mmmm mmor mmpa mmpi mmpr mmrp moaa moab moai moam moap moar moba mobb mobi mobo moii moio moir moma momi momo mooa moob moop moor mopa mopp mora morb mori moro mpaa mpai mpao mpio mpir mppp mpri mpro mprp mrap mrbb mrbm mria mrpa oama oamp oapi oara obai obba obbo obia oboi obor obra obri obro oiba oiii oimb oira omai omam omao omap omar ombo omia omim omio omma omo- omoa omoi omoo omor ompa omra omri omro ooaa ooba oobi ooia ooma oooo oora opap opar opia opii opio opo- opor oppa oppi oppo opra orab orai oram orao orar orba orbb orbi orbo ori- oria orio orma ormo oro- orom oror orpi orra orri orro paap paar paba paia paib paio paip pair pam- pama pamb pami pamm pamo pamp papa papb papi papp papr par- para pari parm paro parp parr pbar pbmr pbpa piai piao pibb pibi piia piip pima pimi pimp piob pipa pipi pipo pipp pira piri piro pirr pmaa pmbr pmip pmma pmmp pmoi pmpm pmpo poar poba pobo poia poio poma pomi pomo pomp poop poor pop- popa popi popo popp pora porb pori poro porr ppap ppar ppib ppoa pppa pppo pppp pprm prai pram prao prar pri- pria prii prim pro- proa prob prom proo prop prri prrm raab raam raba rabb rabi rabo