-er b-u bbb bbd bbe bbg bbi bbk bbr bbu bdb bdd bde bdg bdi bdk bdr bdu be- beb bed bee beg bei bek ber beu bgb bgd bge bgg bgi bgk bgr bgu bi- bib bid bie big bii bik bir biu bkb bke bkg bkk bkr brb brd bre brg bri brk brr bru bub bud bue bug bui buk bur buu dbb dbd dbe dbg dbi dbk dbr dbu ddb ddd dde ddg ddi ddk ddr ddu de- deb ded dee deg dei dek der deu dgd dge dgg dgi dgk dgr dgu di- dib did die dig dii dik dir diu dkb dke dkg dki dkk dkr dku drb drd dre drg dri drk drr dru dub dud due dug dui duk dur ebb ebd ebe ebg ebi ebk ebr ebu ed- edb edd ede edg edi edk edr edu eeb eed eee eeg eek eer egb egd ege egg egi egr egu eib eid eie eig eii eik eir eiu ekb ekd eke ekg eki ekr eku erb erd ere erg eri erk err eru eu- eub eud eue eug eui eur g-d gbd gbe gbg gbi gbk gbr gbu gdb gdd gde gdi gdk gdr gdu ge- geb ged gee geg gei gek ger geu ggb ggd ggg ggi ggr ggu gib gid gie gig gii gik gir giu gkb gkd grb grd gre grg gri grk grr gru gu- gub gud gue gug gui guk gur guu i-d ibb ibd ibe ibg ibi ibk ibr ibu idb idd ide idg idi idk idr idu ie- ied iee ieg iei iek ier igb igd ige igg igi igk igr igu iib iid iie iii iir iiu ikb ike iki ikk ikr iku ir- irb ird ire irg iri irk irr iru iu- iub iud iue iug iui iur kbb kbd kbe kbi kbk kbr kbu kdb kde kdg kdk kdr kdu ke- keb ked kee keg kei kek ker kgb kgd kgi kgu kib kid kie kig kii kik kir kiu kkb kke kki kkk kkr kku krd krg kri krk krr kru kub kud kue kug kui kuk kur kuu rbb rbd rbe rbg rbi rbk rbr rbu rdb rdd rde rdg rdi rdr rdu re- reb red ree reg rei rek rer reu rgb rgd rge rgg rgi rgk rgr rib rid rie rig rii rik rir rkb rke rkg rkk rku rrb rrd rrg rri rrk rrr rru rub rud rue rug rui ruk rur ruu ubb ube ubg ubi ubk ubr ubu udb udd ude udg udi udk udr udu ueb ued uee ueg uei uer ugb uge ugg ugi ugk ugr ugu uib uid uie uig uii uir uiu ukb uke uki ukk ukr uku ur- urb urd ure urg uri urk urr uru uue uug uur uuu

bbbb bbdd bbeb bbrg bd-r bdii bebb bebe bebi bede bedi bedu beeb beed beeg beek beer begg begi begu beik beir beke beki berd bere berg beri berk berr beru beuk beur bibb bibe bibi bide bidi bidr bidu bieb bied bier bieu bigb bigd bige bigg bigu bike biku birb bird bire birg biri birk birr biru bkgd breb bred bree breg brei brek brer brid brie brig brik brkb brrr brud brue brug bubb bube bubi bubu budb budd bude budg budi budu buer bueu buge bugg bugi buid buie buik buir buiu buke buki bukk buku bur- burb burd bure burg buri burk burr buru dddd ddie ddre ddub debe debi debu dedd dede dedi dedu deeb deed deeg deek deer dege degi degu deid deie deir dek- deke der- derb dere derg deri derk derr deue deuk deur dgeg dgge dgkb dgkd dgkg dibb dibe dide didi didu dieb died dier dieu dige digg digi diii dike diki diku dird dire dirk dirr dkid dred dree dreg drei drek drge drib drie drub drue drug drui druk druu dub- dubb dube dubu dudd dude dudu duer dugu duid duir duke duki duku dure durg duri durk duru duur ebbr ebed eber ebid ebru ebur edde eddi ede- edei eder edge edie edik edru edur eede eedu eeee eeke eerg egbe egbu egee eger eggb egge eggi egir egre egri eid- eide eidi eidr eidu eied eiei eier eige eigg eike eiki eird eire ekeb eked ekek eker ekki ekur erbb erbe erde erdi ereb ered erei erer erg- ergg ergi erie erik eriu erke erki erre erub erur eubi eude euer euge eur- eure gbde gddb gebe gebi gedd gede gedi gedu geed geek geer gege gegg geie geig geir geki gerb gerd gere geri geru geue gggg gibb gibe gidd gide gidi gied gier gige gigg gigi giku gird gire girg giri girk girr giru giue giur grbr greb gree greg greu grib grid grie grig grrr grub grue grug grui grur gubb gubi gubu gude gudi gudu guer gugb guge gugg gugi gugu guib guid guik gurb gurd gure gurg guri gurk gurr guru i-be ibed ibeg ibge ibid ibie ibrd ibri idbe ided idee ider idid idie idig idir idku idre idub iedr ieie iere ieri ieud iger igri igue iide iied iiie iiii ikee iker ikid ikig ikki ikri ikue irbe ired iree irer iri- irid irie irig irki irre irri iuge iuiu k-id kbbb kbbd kbbe kbbg kbbi kbbk kbbr kbbu kbdb kbde kbdg kbdi kbdr kbeb kbed kbee kbek kber kbgb kbge kbgg kbgr kbib kbid kbie kbig kbik kbiu kbkb kbkg kbkk kbkr kbrb kbrd kbre kbrg kbri kbrk kbru kbub kbud kbue kbuk kbur kbuu kdbb kdbg kdbi kdbr kddb kddd kddg kddi kddk kddr kdeb kdei kdge kdkb kdkd kdkk kdkr kdrb kdri kdub kdug kdur kebb kebe kebi kebr kebu kedb kedd kede kedg kedi kedr keed keek keer kege kegg kegi kegk kegr keib keid keig keii keik keir kekb keke keki keku ker- kerb kere keri kerk kerr keru keug keur kgbb kgbr kgdb kgdd kgeb kged kggg kggi kggr kgir kgrb kgrd