-er -ol -up b-p b-u bbb bbe bbf bbg bbk bbl bbo bbp bbr bbu be- beb bee bef beg bek bel beo bep ber beu bfb bfe bff bfg bfl bfo bfp bfr bfu bgb bge bgf bgg bgk bgl bgo bgp bgr bgu bkb bke bkf bkg bkk bkl bko bkp bkr blb ble blf blg blk bll blo blp blr blu bob boe bof bog bok bol boo bop bor bou bpb bpe bpf bpg bpl bpo bpp bpr bpu brb bre brf brg brk brl bro brp brr bru bub bue buf bug buk bul buo bup bur buu ebb ebe ebf ebg ebk ebl ebo ebp ebr ebu eeb eee eef eeg eek eel eeo eep eer ef- efb efe eff efg efl efo efp efr egb ege egf egg egl ego egp egr egu ekb eke ekf ekg ekl eko ekp ekr eku elb ele elf elg elk ell elo elp elr elu eo- eob eoe eof eog eok eol eoo eop eor eou ep- epb epe epf epg epl epo epp epr epu erb ere erf erg erk erl ero erp err eru eu- eub eue euf eug eul eup eur fbb fbe fbf fbg fbk fbl fbo fbp fbr fbu feb fee fef feg fek fel feo fep fer feu ffe fff ffg ffk ffl ffo ffp ffr ffu fgb fge fgf fgg fgl fgp fgr fkb fkf fkg fkk fkl fkp flb fle flf flg fll flo flp flr flu fob foe fof fog fok fol foo fop for fou fpb fpe fpg fpk fpl fpo fpp fpr fpu frb fre frf frg frk frl fro frp frr fru fub fue fuf fug fuk ful fuo fup fur fuu g-p gbe gbf gbg gbk gbl gbo gbp gbr gbu ge- geb gee gef geg gek gel geo gep ger geu gfb gfe gff gfk gfl gfo gfp gfr ggb ggg ggo ggp ggr ggu gkb gko gkp glb gle glf glg glk gll glo glp glr glu gob goe gof gog gok gol goo gop gor gou gpb gpe gpf gpg gpk gpl gpo gpp gpr gpu grb gre grf grg grk grl gro grp grr gru gu- gub gue guf gug guk gul guo gup gur guu kbb kbe kbf kbk kbl kbo kbp kbr kbu ke- keb kee kef keg kek kel keo kep ker kff kfg kfo kfu kgb kgf kgl kgo kgp kgu kkb kke kkk kkl kkp kkr kku kl- klb klf klg klo klr klu kob koe kof kog kok kol koo kop kor kou kpe kpf kpk kpl kpo kpp kpr kpu krf krg krk krl kro krp krr kru kub kue kug kuk kul kup kur kuu l-p lbb lbe lbf lbg lbk lbl lbo lbp lbr lbu leb lee lef leg lek lel leo lep ler leu lfb lfe lff lfg lfk lfl lfo lfp lfr lfu lgb lge lgf lgg lgk lgl lgo lgp lgr lgu lkb lkg lkl lkp lkr llb lle llf llg llk lll llo llp llr llu lob loe lof log lok lol loo lop lor lou lpb lpe lpf lpg lpk lpl lpo lpp lpr lpu lrb lrf lrg lrk lro lrp lrr lru lub lue luf lug luk lul luo lup lur luu ob- obb obe obf obg obk obl obo obp obr obu oeb oee oef oeg oel oeo oep oer of- ofb ofe off ofg ofl ofo ofp ofr ofu oge ogf ogg ogl ogo ogp okb oke okg okk okl oko okp okr oku olb ole olf olg olk oll olo olp olu oo- oob oof oog ook ool ooo oop oor op- opb ope opf opg opk opl opo opp opr or- orb ore orf org ork orl oro orp orr oru ou- oue ouf ouk oul ouo oup our p-p pbb pbe pbf pbg pbk pbl pbo pbp pbr pbu peb pee pef peg pek pel peo pep per peu pfb pfe pff pfg pfk pfl pfo pfp pfr pfu pgb pge pgf pgg pgk pgl pgo pgp pgr pkb pke pkf pkg pkl pko pkp pkr pku plb ple plf plg plk pll plo plp plr plu pob poe pof pog pok pol poo pop por pou ppb ppe ppf ppg ppk ppl ppo ppp ppr ppu prb pre prf prg prk prl pro prp prr pru pub pue puf pug puk pul pup pur puu rbb rbe rbf rbg rbk rbl rbo rbp rbr rbu re- reb ree ref reg rek rel reo rep rer reu rfb rfe rff rfg rfk rfl rfo rfp rfr rfu rgb rge rgf rgg rgk rgo rgp rgr rkb rke rkf rkg rkk rko rkp rku rle rlf rlg rll rlo rlp rlr rlu rob roe rof rog rok rol roo rop ror rou rpb rpe rpf rpg rpk rpl rpo rpp rpr rpu rrb rrf rrg rrk rrl rrp rrr rru rub rue ruf rug ruk ruo rup rur ruu ubb ube ubf ubg ubk ubl ubo ubp ubr ubu ueb uee uef ueg uel uep uer ufe uff ufg ufl ufo ufp ufr ufu ugb uge ugf ugg ugk ugl ugo ugp ugr ugu ukb uke ukf ukk ukl ukp ukr uku ulb ule ulf ulg ulk ull ulo ulp ulr ulu uob uoe uog uok uol uoo uop uor up- upb upe upf upg upk upo upp upr upu ur- urb ure urf urg urk url uro urp urr uru uue uug uur uuu

bbbb bbeb bblb bbpr bbrg bebb bebe bebo beeb beef beeg beek beel beep beer befe beff befo begg bego begu beke beko bele belg belk bell belo belp belu beo- beof beok beor bepo bere berg berk bero berr beru beuk beur bffl bfgf bfpo bfpp bkpg bkpr bleb blee bleg blek bleo bleu blkb blob blog blok bloo blop blou blrg blub blue bluf blup blur bobb bobe bobo bobu boee boef boel boeo boep boer bofe boff bofu boge bogg bogo boke