-er a-a a-b aaa aab aad aae aag aar aau ab- aba abb abd abe abg abr abu ad- ada adb add ade adg adr adu aea aeb aed aee aeg aer aeu ag- aga agb agd age agg agr agu ar- ara arb ard are arg arr aru au- aua aub aud aue aug aur b-u baa bab bad bae bag bar bau bba bbb bbd bbe bbg bbr bbu bda bdb bdd bde bdg bdr bdu be- bea beb bed bee beg ber beu bga bgb bgd bge bgg bgr bgu bra brb brd bre brg brr bru bua bub bud bue bug bur buu daa dab dad dae dag dar dau dba dbb dbd dbe dbg dbr dbu dda ddb ddd dde ddg ddr ddu de- dea deb ded dee deg der deu dga dgd dge dgg dgr dgu dra drb drd dre drg drr dru dua dub dud due dug dur eaa eab ead eae eag ear eau eba ebb ebd ebe ebg ebr ebu ed- eda edb edd ede edg edr edu eea eeb eed eee eeg eer ega egb egd ege egg egr egu era erb erd ere erg err eru eu- eua eub eud eue eug eur g-d gaa gab gad gae gag gar gau gba gbd gbe gbg gbr gbu gda gdb gdd gde gdr gdu ge- gea geb ged gee geg ger geu gga ggb ggd ggg ggr ggu gra grb grd gre grg grr gru gu- gua gub gud gue gug gur guu ra- raa rab rad rae rag rar rau rba rbb rbd rbe rbg rbr rbu rda rdb rdd rde rdg rdr rdu re- rea reb red ree reg rer reu rga rgb rgd rge rgg rgr rra rrb rrd rrg rrr rru rua rub rud rue rug rur ruu ua- uaa uab uad uae uag uar uau uba ubb ube ubg ubr ubu uda udb udd ude udg udr udu uea ueb ued uee ueg uer uga ugb uge ugg ugr ugu ur- ura urb urd ure urg urr uru uua uue uug uur uuu

a-be aaaa aaab aaad aaae aaar aaba aabb aabd aada aade aadu aaea aage aara aard aare aaru abaa abab abad abae abag abar abau abb- abba abbb abbe abbr abda abdu abed abee aber abgd abra abua abud abue abug adaa adab adad adae adag adar adba adda addd adde addr addu adea adeb adee ader adra adre adua adub adue adur aede aeer aega aer- aera aerd agad agag agar agau agba agda agde agea aged agee ager agga agge aggu agra agre agua ague agur arab arad arae arag arar arau arba arbe arda arde ardu area ared aree areg areu arga argb arge arr- arra arre arrg arrr arru arua arub arud arue arug auaa aube aude auer auga auge aur- aura aurd aure auug baaa baad baar baba babb babe babr babu bada badb badd bade badr badu baed baer baga bage bagg bar- bara barb bard bare barg barr baru bau- baud baug baur bbad bbau bbbb bbdd bbeb bbga bbrg bd-r bead beag bear beau beba bebb bebe beda bede bedu beeb beed beeg beer bega begg begu bera berd bere berg berr beru beur brab brad brae brag brau brda brea breb bred bree breg brer brrr brud brue brug buad buar buba bubb bube bubu buda budb budd bude budg budu buea buer bueu buga buge bugg bur- bura burb burd bure burg burr buru daab daad daae daag daar daau daba dabb dabu dada dade dadu daeb daer daeu daga dage dagg dagr dagu dara darb dard dare darg darr daru daub daud daue daur dbag dbar dddd ddre ddub dead deae dear deau deba debe debu deda dedd dede dedu deeb deed deeg deer dega dege degu der- dera derb dere derg derr deua deue deur dgeg dgge draa drab drad drag drar drau drba drda drea dred dree dreg drge drra drua drub drue drug druu duaa duab duad duar dub- duba dubb dube dubu duda dudd dude dudu duer duga dugu dura dure durg duru duur eaba eada eadb eadd eaga eage eara earb eard eare ebba ebbr ebed eber ebru ebur edad edag edar edda edde ede- edea eder edge edra edru edur eede eedu eeea eeee eega eera eerg egaa egad egae egar egba egbe egbu egea egee eger eggb egge egra egre erad erau erba erbb erbe erda erde ereb ered erer erg- erga ergg erra erre erua erub erur euba eude euer euge eur- eura eure gaar gaba gabb gabe gabr gabu gada gadd gade gaea gaed gaer gaga gage gagg gagu gara garb gard gare garg garr gaua gaub gaud gaue gaur gbag gbde gddb geab gead gear geba gebe geda gedd gede gedu geed geer gege gegg gera gerb gerd gere geru geue gggg grab grad grae grau grbr grea greb gree greg greu grrr grua grub grue grug grur guaa guag guar guba gubb gubu guda gude gudu guer guga gugb guge gugg gugu gura gurb gurd gure gurg gurr guru raab raad raag raba rabb rabe rabu rada radd rade radr radu raed raeg raer raga rage ragg ragu rara rarb rare raua raub raud raue rbbb rbbr rder rea- read reae rear reau reba rebb rebe rebu reda redd rede redr redu reeb reed rega regd rege regr regu rera rerd rere rerg reru reue reuu rgba rgbe rrad rred rrrr ruad ruag ruba rubb rube rubu ruda rudd rude rued ruer ruga ruge rugg rura rurd rure ruru ruud uaru uaua ubar ubba ubbe uber ubra ubud udaa udad udar udau udea uder udgb udge udra ueba ueda ugab ugar ugra ugur uguu urad urau urba urbe urda urde urdu ure- urea ured urga urge urgu urra urre urur uuuu

-aaa- -abad -drag aaaee aaarg aabaa aabba aabga aabra aarau abaab ababa ababe ababu abada abade abaer abaga abara abare abaru abbad abbar abbed abbud abbur abead abear abeau