-er b-p bbb bbe bbf bbg bbk bbo bbp bbr be- beb bee bef beg bek beo bep ber bfb bfe bff bfg bfo bfp bfr bgb bge bgf bgg bgk bgo bgp bgr bkb bke bkf bkg bkk bko bkp bkr bob boe bof bog bok boo bop bor bpb bpe bpf bpg bpo bpp bpr brb bre brf brg brk bro brp brr ebb ebe ebf ebg ebk ebo ebp ebr eeb eee eef eeg eek eeo eep eer ef- efb efe eff efg efo efp efr egb ege egf egg ego egp egr ekb eke ekf ekg eko ekp ekr eo- eob eoe eof eog eok eoo eop eor ep- epb epe epf epg epo epp epr erb ere erf erg erk ero erp err fbb fbe fbf fbg fbk fbo fbp fbr feb fee fef feg fek feo fep fer ffe fff ffg ffk ffo ffp ffr fgb fge fgf fgg fgp fgr fkb fkf fkg fkk fkp fob foe fof fog fok foo fop for fpb fpe fpg fpk fpo fpp fpr frb fre frf frg frk fro frp frr g-p gbe gbf gbg gbk gbo gbp gbr ge- geb gee gef geg gek geo gep ger gfb gfe gff gfk gfo gfp gfr ggb ggg ggo ggp ggr gkb gko gkp gob goe gof gog gok goo gop gor gpb gpe gpf gpg gpk gpo gpp gpr grb gre grf grg grk gro grp grr kbb kbe kbf kbk kbo kbp kbr ke- keb kee kef keg kek keo kep ker kff kfg kfo kgb kgf kgo kgp kkb kke kkk kkp kkr kob koe kof kog kok koo kop kor kpe kpf kpk kpo kpp kpr krf krg krk kro krp krr ob- obb obe obf obg obk obo obp obr oeb oee oef oeg oeo oep oer of- ofb ofe off ofg ofo ofp ofr oge ogf ogg ogo ogp okb oke okg okk oko okp okr oo- oob oof oog ook ooo oop oor op- opb ope opf opg opk opo opp opr or- orb ore orf org ork oro orp orr p-p pbb pbe pbf pbg pbk pbo pbp pbr peb pee pef peg pek peo pep per pfb pfe pff pfg pfk pfo pfp pfr pgb pge pgf pgg pgk pgo pgp pgr pkb pke pkf pkg pko pkp pkr pob poe pof pog pok poo pop por ppb ppe ppf ppg ppk ppo ppp ppr prb pre prf prg prk pro prp prr rbb rbe rbf rbg rbk rbo rbp rbr re- reb ree ref reg rek reo rep rer rfb rfe rff rfg rfk rfo rfp rfr rgb rge rgf rgg rgk rgo rgp rgr rkb rke rkf rkg rkk rko rkp rob roe rof rog rok roo rop ror rpb rpe rpf rpg rpk rpo rpp rpr rrb rrf rrg rrk rrp rrr

bbbb bbeb bbpr bbrg bebb bebe bebo beeb beef beeg beek beep beer befe beff befo begg bego beke beko beo- beof beok beor bepo bere berg berk bero berr bfgf bfpo bfpp bkpg bkpr bobb bobe bobo boee boef boeo boep boer bofe boff boge bogg bogo boke boko boob booe boof boog book boop boor bope bopp bor- bore borf borg bork boro borr bpoe breb bree bref breg brek breo brep brer brkb brob broe brog brok broo bror brrr ebbo ebbr eber eboe eboo ebor ebpo ebro eeee eefe eeke eerg eero ef-g efbr efeo efgp efke efor egbe egee eger egfp egfr eggb egge eggo eggp ego- egor egpb egpe egpo egre ekeb ekek eker ekpe ekpo eore epee eper epor eppo eppp eprb epro eprp erbb erbe ereb erer erg- ergg ergo erke erob eroe eroo erpe erre erro f--k fbop febo feeb feek feer fefe feff fefo fege fegg feke feko feof ferb fere ferk fero ferr ffee ffff ffrr fkbp foer fofo foge fogg fogo foke foof fook fopp for- forb fore forg fork foro forr fprf free freo frep frob froe frog frop gbbo gebe geek geep geer gefe gege gegg gego geko geo- geof geog gepe gerb gere gero gfer gfor ggfg gggg ggpo gkrp gobe gobo goef goer gofe goff gofr gogo goke goof goog gook goop goor gope gopo gorb gore gorf gorg goro gorp gorr gper gpgp gprp grbr greb gree gref greg grep grob grof grog grok groo grop gror grrr kbbb kbbe kbbf kbbg kbbk kbbo kbbr kbeb kbee kbef kbek kbeo kber kbfb kbff kbfk kbfo kbfp kbfr kbgb kbge kbgg kbgo kbgr kbkb kbkf kbkg kbkk kbko kbkr kbob kboe kbok kboo kbpe kbpg kbpk kbpo kbpr kbrb kbre kbrf kbrg kbrk kbro kebb kebe kebr keef keek keep keer kefb keff kefr kege kegg kegk kegr kekb keke keko keok kep- kepe ker- kerb kere kerf kerk kero kerp kerr kfbk kfeb kfeg kfer kffb kfff kffg kffk kfge kfgo kfgr kfkb kfog kfok kfoo kfor kfpr kfre kfrg kfro kfrp kfrr kgbb kgbr kgeb kgeo kgff kgfk kggf kggg kggo kggr kgoe kgor kgpe kgpf kgpg kgpr kgrb kgre kgrg kgrk kgro kgrr kkbb kkbe kkbg kkbo kkbr kkeg kkfg kkfr kkgb kkgo kkgr kkkk kkob kkoo kkor kkpk kkrb kkre kkrf kkrk kkro kkrr kobb kobe kobk kobo kobr kofe koff kofg kofk kofo kofp kogb koge kogg kogo kokb koke kokf kokk koko kokp kokr koob koog kook kooo koop koor kopb kope kopf kopp kopr korb kore korf korg kork koro korr kpbb kpbe kpbg kpbr kpek kper kpfk kpfr kpgb kpge kpgg kpgr kpke kpkk kpkr kpob kpoe kpof kpok kpoo kpop kppk kppo kppp kppr kprb kpre kprf kprg kprk kpro kprp kprr krbb krbe krbg krbk krbr kreb kree kref krek kreo krfe krff krfg krfo krfp krke krkk krko krkr krob kroe krof krog krok kroo krop kror krpr krrb krre krrf krrg krrk krro krrr o-eo obbo ober obkb oboe obok obor obre obro oegb oere ofek ofer off- offe offo offr ofgo ofor ofre ogb