-er a-a a-b a-i aaa aab aae aag aai aam aao aap aar ab- aba abb abe abg abi abm abo abp abr aea aeb aee aeg aei aem aeo aep aer ag- aga agb age agg agi agm ago agp agr ai- aia aib aie aig aii aim aio aip air ama amb ame amg ami amm amo amp amr aoa aob aoe aog aoi aom aoo aop aor ap- apa apb ape apg api apm apo app apr ar- ara arb are arg ari arm aro arp arr b-p baa bab bae bag bai bam bao bap bar bba bbb bbe bbg bbi bbm bbo bbp bbr be- bea beb bee beg bei bem beo bep ber bga bgb bge bgg bgi bgm bgo bgp bgr bi- bia bib bie big bii bim bio bip bir bma bmb bme bmg bmi bmm bmo bmp bmr boa bob boe bog boi bom boo bop bor bpa bpb bpe bpg bpi bpm bpo bpp bpr bra brb bre brg bri brm bro brp brr eaa eab eae eag eai eam eao eap ear eba ebb ebe ebg ebi ebm ebo ebp ebr eea eeb eee eeg eem eeo eep eer ega egb ege egg egi egm ego egp egr eia eib eie eig eii eim eio eip eir em- ema emb eme emg emi emm emo emp emr eo- eoa eob eoe eog eoi eom eoo eop eor ep- epa epb epe epg epi epm epo epp epr era erb ere erg eri erm ero erp err g-p gaa gab gae gag gai gam gao gap gar gba gbe gbg gbi gbm gbo gbp gbr ge- gea geb gee geg gei gem geo gep ger gga ggb ggg ggi ggm ggo ggp ggr gia gib gie gig gii gim gio gip gir gma gmb gme gmg gmi gmm gmo gmp gmr goa gob goe gog goi gom goo gop gor gpa gpb gpe gpg gpi gpm gpo gpp gpr gra grb gre grg gri grm gro grp grr ia- iaa iab iae iag iai iam iao iap iar iba ibb ibe ibg ibi ibm ibo ibp ibr ie- iea iee ieg iei iem iep ier iga igb ige igg igi igm igo igp igr iia iib iie iii iim iio iip iir im- ima imb ime img imi imm imo imp io- ioa iob ioe iog ioi iom ioo iop ior ipa ipb ipe ipg ipi ipm ipo ipp ipr ir- ira irb ire irg iri irm iro irp irr m-o m-r maa mab mae mag mai mam mao map mar mba mbb mbe mbg mbi mbm mbo mbp mbr mea meb mee meg mei mem meo mep mer mga mgb mge mgi mgm mgo mgp mgr mi- mia mib mie mig mii mim mio mip mir mma mmb mme mmg mmi mmm mmo mmp mmr moa mob moe mog moi mom moo mop mor mpa mpb mpe mpg mpi mpm mpo mpp mpr mra mrb mre mrg mri mrm mro mrp mrr o-i oaa oab oae oag oai oam oao oap oar ob- oba obb obe obg obi obm obo obp obr oea oeb oee oeg oei oem oeo oep oer oga oge ogg ogi ogo ogp oia oib oie oii oim oio oip oir om- oma omb ome omg omi omm omo omp omr oo- ooa oob oog ooi oom ooo oop oor op- opa opb ope opg opi opm opo opp opr or- ora orb ore org ori orm oro orp orr p-p paa pab pae pag pai pam pao pap par pba pbb pbe pbg pbi pbm pbo pbp pbr pea peb pee peg pei pem peo pep per pga pgb pge pgg pgi pgm pgo pgp pgr pia pib pie pig pii pim pio pip pir pma pmb pme pmg pmi pmm pmo pmp pmr poa pob poe pog poi pom poo pop por ppa ppb ppe ppg ppi ppm ppo ppp ppr pra prb pre prg pri prm pro prp prr ra- raa rab rae rag rai ram rao rap rar rba rbb rbe rbg rbi rbm rbo rbp rbr re- rea reb ree reg rei rem reo rep rer rga rgb rge rgg rgi rgo rgp rgr ria rib rie rig rii rim rio rip rir rma rmb rme rmg rmi rmm rmo rmp rmr roa rob roe rog roi rom roo rop ror rpa rpb rpe rpg rpi rpm rpo rpp rpr rra rrb rrg rri rrm rrp rrr

a-be a-ii aaaa aaab aaae aaai aaam aaap aaar aaba aabb aabi aabm aabp aaea aaem aaep aage aaib aaii aama aamb aame aami aamo aamp aamr aaoe aaoo aapa aapi aapm aapo aara aare aari aarm aaro aarp abaa abab abae abag abai abam abap abar abb- abba abbb abbe abbi abbo abbr abee aber abia abib abie abig abim abir abma abmb aboa abob aboo abor abpa abpi abpm abpp abpr abra abri abro aeap aebi aeer aega aeio aeom aer- aera aeri aero ag-o agag agai agam agao agap agar agba agbo agea agee agei agem agep ager agga agge aggi agia agib agie agig agii agim agio agip agir agma agme agob agog agoo agra agre agri agro agrp aiai aiba aibo aiea aiee aiga aigo aiia aiib aiir aime aimi aimm aimo aimp aioi aipa aipe aipi aira aire airi airo airp amaa amae amag amai amam amap amar amb- amba ambe ambi ambo ambr amee amei amer amga amia amib amie amii amip amir amm- amma amme ammi ammo amob amog amoi amoo amor ampa ampe ampm ampo amra amri amro aoba aogm aoma aomg aopo aora aorb apai apam apao apap apar apba apbg apbr apea apeg apem apep aper apga api- apia apie apig apim apio apip apma apo- apoe apom apoo apop apor appa appr apra apre apri apro arab arae arag arai aram arap arar arba arbe arbi area aree areg arei arem areo arep arga argb arge argi argo aria arib arie