-er a-a a-b aaa aab aad aae aak aap aar ab- aba abb abd abe abk abp abr ad- ada adb add ade adk adp adr aea aeb aed aee aek aep aer aka akb akd ake akk akp akr ap- apa apb apd ape apk app apr ar- ara arb ard are ark arp arr b-p baa bab bad bae bak bap bar bba bbb bbd bbe bbk bbp bbr bda bdb bdd bde bdk bdp bdr be- bea beb bed bee bek bep ber bka bkb bke bkk bkp bkr bpa bpb bpd bpe bpp bpr bra brb brd bre brk brp brr daa dab dad dae dak dap dar dba dbb dbd dbe dbk dbp dbr dda ddb ddd dde ddk ddp ddr de- dea deb ded dee dek dep der dka dkb dke dkk dkp dkr dpa dpb dpd dpe dpk dpp dpr dra drb drd dre drk drp drr eaa eab ead eae eak eap ear eba ebb ebd ebe ebk ebp ebr ed- eda edb edd ede edk edp edr eea eeb eed eee eek eep eer eka ekb ekd eke ekp ekr ep- epa epb epd epe epp epr era erb erd ere erk erp err ka- kaa kab kad kae kak kap kar kba kbb kbd kbe kbk kbp kbr kda kdb kde kdk kdp kdr ke- kea keb ked kee kek kep ker kkb kke kkk kkp kkr kpa kpd kpe kpk kpp kpr kra krd krk krp krr p-p paa pab pad pae pak pap par pba pbb pbd pbe pbk pbp pbr pda pdb pdd pde pdk pdp pdr pea peb ped pee pek pep per pka pkb pkd pke pkp pkr ppa ppb ppd ppe ppk ppp ppr pra prb prd pre prk prp prr ra- raa rab rad rae rak rap rar rba rbb rbd rbe rbk rbp rbr rda rdb rdd rde rdp rdr re- rea reb red ree rek rep rer rkb rke rkk rkp rpa rpb rpd rpe rpk rpp rpr rra rrb rrd rrk rrp rrr

a-ak a-be aaaa aaab aaad aaae aaap aaar aaba aabb aabd aabp aada aade aaea aaep aaka aake aapa aara aard aare aarp abaa abab abad abae abak abap abar abb- abba abbb abbe abbr abda abed abee aber abpa abpd abpp abpr abra adaa adab adad adae adak adap adar adba adda addd adde addr adea adeb adee ader adp- adra adre aeap aede aeer aeka aer- aera aerd akaa akae akap akar aked akee aker akka akr- akra akre apak apap apar apba apbr apda apdd apea aped apep aper apke appa appd appr apra apre arab arad arae arak arap arar arba arbe arda arde area ared aree arek arep arka arke arpa arpe arr- arra arre arrk arrr baaa baad baak baar baba babb babe babr bada badb badd bade badr baed baek baer bak- baka bake bakr bapa bape bapp bar- bara barb bard bare bark barr bbad bbbb bbdd bbeb bbpr bd-r bead beak beap bear beba bebb bebe beda bede beeb beed beek beep beer beka beke bera berd bere berk berr bkpr bpda bpea bprd brab brad brae brak brda brea breb bred bree brek brep brer brka brkb brrr daab daad daae daap daar daba dabb dabp dada dade daeb daer daka dake dapa dape dapp dara darb dard dare dark darp darr dbar dbpd dddd ddre dead deae deak deap dear deba debe deda dedd dede deeb deed deek deep deer dek- deka deke depa depe depp depr der- dera derb dere derk derp derr dkba dpaa dper dppa dprk draa drab drad drak drap drar drba drda drea dred dree drek drra eaba eada eadb eadd eadp eapp eara earb eard eare earp ebba ebbr ebed eber edad edar edda edde eddp ede- edea eder edra eede eeea eeee eeka eeke eera eka- ekab ekeb eked ekek eker ekka ekpe epaa epad epee eper eppa eppp epra eprb eprp erad erap erba erbb erbe erda erde ereb ered erer erke erpa erpe erra erre kaaa kaab kaak kaap kaar kaba kabb kabd kabe kabr kad- kada kadd kade kadr kaep kaer kaka kake kakk kap- kapa kape kapp kara karb kard kare kark karp karr kbaa kbab kbad kbae kbak kbap kbar kbba kbbb kbbd kbbe kbbk kbbr kbdb kbde kbdr kbeb kbed kbee kbek kber kbkb kbkk kbkr kbpa kbpe kbpk kbpr kbra kbrb kbrd kbre kbrk kdaa kdab kdad kdae kdak kdap kdar kdbb kdbr kddb kddd kddk kddr kdeb kdep kdka kdkb kdkd kdkk kdkr kdpr kdrb kea- kead keak keap kear keba kebb kebe kebr keda kedb kedd kede kedp kedr keed keek keep keer keka kekb keke kep- kepa kepd kepe ker- kera kerb kere kerk kerp kerr kkaa kkap kkar kkba kkbb kkbd kkbe kkbr kkda kkdd kkea kked kkkk kkpk kkrb kkre kkrk kkrr kpad kpae kpak kpar kpba kpbb kpbd kpbe kpbr kpda kpdb kpdr kpek kper kpke kpkk kpkr kppd kppk kppp kppr kprb kprd kpre kprk kprp kprr krab krad krae krak krap krar krba krbb krbd krbe krbk krbr krda krdd krde krdr krea kreb kred kree krek krka krkd krke krkk krkr krpa krpr krrb krre krrk krrr paak paap paar paba pada padd pade paea paep paer paka pake papa papb pape papp papr par- para pard pare park parp parr pbar pbed pbpa pbpk pdea pdpa pdpr peab peak peap pear peba ped- peda pede peed peek peep peer peka peke pekk pepa pepd pepe per- pera perd pere perk perp perr ppad ppap ppar ppdk pper pppa pppd pppp prad prae prar pre- preb pred pree prek prep prpd prrd raab raad raak raba rabb rabe rabk rada radd rade radr raed raep raer raka rake rakk rapa rapd rape rapp rara rarb rare rark rbbb rbbr rdap rdbp rder rea- read reae reak reap rear reba rebb rebe rebk reda redd rede redr reeb reed reek reep reka reke repe